Pilgrims to the House of Allah in Muzdalifah wearing Ihram in Mecca, Saudi Arabia, performing Hajj and Umrah rituals at sunset, worshipping and drawing closer to Allah in sacred Islamic religious landmarks and places
The Grand Mosque in Mecca, Saudi Arabia, performing Hajj and Umrah, worship and getting closer to God, Islamic religious landmarks, Hajj season 2022, Muslim pilgrims circumambulating the Kaaba in Mecca
Muslims gathered in the courtyard of the Prophet’s Mosque in the Kingdom of Saudi Arabia, holy Islamic places, electronic umbrellas in the outer complex of the mosque, distinct religious landmarks in Medina, worship and getting closer to God, the Hajj and Umrah season
Daytime photography of the hair of Mina in Mecca, pilgrims of the House of God in the tent area in Mina, performing Hajj, Islamic holy places in the Kingdom of Saudi Arabia
Group of workers cleaning the hills of Safa at the Grand Mosque, Jabal Al Safa and Al Marwa in Mecca, Saudi Arabia, Islamic holy places, Islamic religious landmarks, Islamism and worship
Pilgrims and Umrah pilgrims circumambulate around the Holy Kaaba in Mecca, the Holy House of God in the Holy Mosque in Mecca in the Kingdom of Saudi Arabia, sacred Islamic places and landmarks, performing Hajj and Umrah rituals, worship and getting closer to God, the Qibla of Islam and Muslims.
Completing the Hajj rituals by standing on the Mount of Mercy, an aerial photo of the gathering of pilgrims of the Sacred House of God on Mount Arafat, crowds of Muslims flocking to the mountain, a pause on the Day of Arafat, supplication and drawing closer to God, a famous Islamic landmark in Mecca in the Kingdom of Saudi Arabia
A group of pilgrims walk on the Jamarat Bridge in Mecca, performing Hajj and Umrah rituals, sacred Islamic religious places and landmarks in the Kingdom of Saudi Arabia, visiting the Holy House of God during the day
The view of the sky filled with clouds during sunset, the call to Muslims to perform obligatory prayers and prayers, worship and getting closer to God, the architectural engineering art of building mosques in the Kingdom of Saudi Arabia, modern exterior decorations and designs for building a mosque, Islamic holy places
The Kaaba in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, the Holy Mosque of Mecca, performing the rituals of Hajj and Umrah, the clock tower, circumambulation around the Holy Kaaba, Islamic holy places
Pilgrims of the Sacred House of God in the Holy Mosque of Mecca in the Kingdom of Saudi Arabia, performing prayers in the Grand Mosque in Mecca, worship and drawing closer to God, performing the rituals of Hajj and Umrah, Islamic religious landmarks, the
Pilgrims to the House of God in the Holy Mosque of Mecca in Mecca, Saudi Arabia, the architectural art of the Meccan clock tower overlooking the Grand Mosque, the arrival of Muslims from all over the world to perform Hajj and Umrah rituals, sacred Islamic religious places and landmarks
Worship and getting closer to God, a close-up portrait of a Saudi Arabian Gulf man wearing the ihram dress and carrying the rosary, worship and getting closer to God, dhikr and supplications, gray background, Islamic and worship
Pictures of the minaret of the Prophet's Mosque in Medina, Saudi Arabia, worship and getting closer to God, the sound of the call to prayer, the call of Muslims to pray
A picture of the pilgrims to the Sacred House of God, performing the rituals of Hajj and Umrah, Islam and worship, performing Hajj, worship and getting closer to God, Hajj season 2022, Islam and worship
A picture of pilgrims in the holy sites in Makkah Al-Mukarramah, performing Hajj, Hajj season 2022, Islamic holy places in the Kingdom of Saudi Arabia, worship and getting closer to God
Pictures from various sides of the Prophet's Mosque in Medina in the Kingdom of Saudi Arabia, worship and closeness to God, the Prophet's Mosque, the Prophet Muhammad Mosque, the green dome of the landmarks of the Prophet's Mosque
Worship and closeness to God, the virtue of Umrah in the blessed month of Ramadan, a close-up of a dark-skinned pilgrim, a Muslim, an Arab, a Saudi, and a Khaleeji, wearing the Ihram clothes, looking at the camera, performing Hajj and Umrah in the month o
Performing Hajj and Umrah rituals, a close-up of the circumambulation of pilgrims and Umrah pilgrims around the Holy Kaaba in Mecca, the Sacred House of God in the Holy Mosque of Mecca, sacred Islamic places and landmarks, the Qibla of Islam and Muslims, the concept of worship and getting closer to God
Using an electronic wristwatch, a portrait of an elderly Saudi Arabian Gulf Muslim man wearing ihram clothes, knowing and determining the time, the concept of time management, the Hajj season 2023, performing the rituals of Hajj and Umrah, the fifth pilla
Supplication, worship, and closeness to God in Makkah Al-Mukarramah, a picture from the side of a young Saudi Arabian Gulf Muslim raising his hands up and praying humbly, performing Hajj and Umrah rituals, wearing Ihram clothes, Hajj season 2023, standing
Sacred Islamic religious landmarks, performing Hajj and Umrah rituals, the view of the Holy Kaaba at sunrise, the minarets of the Grand Mosque overlooking the Holy Mosque in Mecca, the concept of worship and getting closer to God, the Hajj season in the Kingdom of Saudi Arabia
A close-up of an hour in Al-Masa’a Road in Makkah Al-Mukarramah, prayer times and the call to prayer, performing Islamic religious duties, Islamic architectural art, drawing closer to God with good deeds.
Islamic holy places, the Holy House of God in the Holy Mosque of Mecca in the Kingdom of Saudi Arabia, a close-up of Quranic verses at the door of the Holy Kaaba in Mecca, worship and closeness to God
Pictures from inside the Prophet's Mosque in Medina in the Kingdom of Saudi Arabia, worship and getting closer to God, the Prophet's Mosque, the Prophet Muhammad Mosque
The concept of intimacy between spouses, multiplying acts of worship in the holy month of Ramadan, answering God's call to Hajj and Umrah, a close-up portrait of a smiling Saudi Gulf Arab couple wearing the Ihram garments, preserving the five daily prayer
A picture of the Kaaba in Mecca and located in the Kingdom of Saudi Arabia, the Hajj season in Saudi Arabia, the pilgrims during the Hajj season in Saudi Arabia
Circumambulating around the Holy Kaaba in the Sacred House of God, drawings of Muslims wearing Ihram clothes and raising their hands with peace gestures, performing the Hajj obligation, getting closer to God through acts of worship, emojis in Islam, the phrase Hajj Mabroor to bless the Hajj season
Visitors to the House of Allah walk in the Jamarat Bridge area in Mecca carrying umbrellas, Islamic religious holy places in the Kingdom of Saudi Arabia, worship and drawing closer to Allah Almighty, Muslim pilgrims perform Hajj and Umrah rituals
Performing Hajj and Umrah rituals, sacred Islamic religious landmarks, panoramic image of the clock tower building in Mecca, Saudi Arabia during the day, architectural art of towers and skyscrapers
Pilgrims of the Sacred House of God in the outer courtyard of the Grand Mosque in Makkah Al-Mukarramah, Saudi Arabia, towers and hotels overlooking the Grand Mosque in Mecca, pilgrims of the House of God feeding pigeons, Islamic landmarks, religious touri
Performing the obligatory prayers on time, getting closer to God through diligence in worship and performing the rituals of Hajj and Umrah, a portrait of a Saudi Gulf Arab man wearing the Ihram dress, sitting on the prayer rug, raising his hands and calling upon God, gestures indicating supplication and supplication, blue background.
Pilgrims of the Sacred House of God perform prayers in the Holy Mosque of Mecca in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, the Kaaba in Mecca, performing the rituals of Hajj and Umrah, holy Islamic places
Close-up of the Kaaba in Makkah Al-Mukarramah, pilgrims circumambulating the Kaaba, performing Hajj and Umrah, worship and getting closer to God, Hajj season 2022, Islam and worship
The dress of modesty and covering for the Muslim woman, approaching God with good deeds, preserving the five daily prayers, the virtue of Umrah in the blessed month of Ramadan, a close-up portrait from the back of a Saudi Arabian Gulf woman wearing white
The concept of time management, a portrait of an elderly Muslim Arab Saudi Gulf man wearing ihram clothes and using an electronic wristwatch, knowing and setting the time, the Hajj season 2023, performing the rituals of Hajj and Umrah, the fifth pillar of
Reciting verses and getting closer to God, memorizing and interpreting the Holy Qur’an, a close-up portrait of a Saudi Gulf Arab young man wearing Ihram clothes and holding a small Qur’an in his hand, performing Hajj and Umrah rituals, the fifth pillar of Islam, gray background
The minaret of the Prophet's Mosque in Medina, Worship and drawing closer to God, The Green Dome in the Prophet's Mosque, Islamic holy places and landmarks in the Kingdom of Saudi Arabia, The spiritual religious atmosphere, The destination of Muslims from all over the world
The Royal Clock Tower building overlooking the Holy Mosque of Mecca in the Kingdom of Saudi Arabia, performing Hajj and Umrah rituals, worship and getting closer to God, sacred Islamic religious landmarks, Muslim pilgrims circumambulating the Holy Kaaba in Mecca
The concept of worship and getting closer to God Almighty, performing Hajj and Umrah rituals, a close-up portrait of a young Saudi Arabian Gulf man wearing the Ihram dress, holding the Noble Qur’an in his hand, reciting and memorizing the Holy Qur’an, gray background, sensitive use, sensitive content.
The concept of worship and drawing closer to God Almighty, a group of pilgrims and Umrah performers walking under umbrellas in the Jamarat area in Mecca, visitors to the House of God performing the Hajj and Umrah rituals, sacred Islamic religious places
Increasing acts of worship in the blessed month, the concept of intimacy between spouses, visiting the Sacred House of God in Makkah Al-Mukarramah, performing Hajj and Umrah in the Hajj season 2023, a portrait from behind of a Saudi Arabian Gulf couple we
Islamic religious holy places in Saudi Arabia, Muslims gather in the outer complex of the Prophet's Mosque, architectural art of the minarets and the green dome, electronic umbrellas in the courtyard of the mosque in Medina, worship and closeness to God, spiritual religious atmosphere
Worship and closeness to God, the Grand Mosque in the Kingdom of Saudi Arabia, sacred Islamic religious places and landmarks, a three-dimensional illustration of the Holy Kaaba in Mecca, the golden rays of the sun reflected in the courtyard of the Holy Mosque in Mecca
Islamic religious monuments and places in the Kingdom of Saudi Arabia, warm sunlight entering the mosque courtyard, interior architectural decorations of mosques in the Islamic style, worship and getting closer to God, architectural engineering art for places of worship
Paved roads and streets during the day, holy Islamic places, pilgrims’ tents in Mina in Mecca, the Hajj season in the Kingdom of Saudi Arabia, performing religious rituals and duties, the concept of worship and getting closer to God Almighty.
Travel and wandering to visit the Holy House of Allah, close-up portrait of a smiling Saudi Arabian Gulf Muslim man wearing Ihram clothes holding a black travel bag, getting closer to Allah by performing Hajj and Umrah, looking at a distant place with gestures of pleasure and happiness, full body image, beige background
Noble religious purposes, the Qiblah of Islam and Muslims, a three-dimensional model of the Holy Kaaba, holy places and landmarks in Mecca, 3D Islamic backgrounds and drawings, Islamic and worship
Performing Hajj and Umrah rituals, a portrait of a smiling Saudi Gulf Arab young man wearing Ihram clothes and raising his hand up to say hello and peace with expressions of pleasure, worship and closeness to God, full-length body, gray background, sensitive use, sensitive content
The influx of pilgrims to the Holy House of God to perform Hajj and Umrah rituals, sacred Islamic religious landmarks, a panoramic picture of the buildings in Mecca in the Kingdom of Saudi Arabia, the architectural engineering art of the towers and skyscrapers surrounding the Holy Mosque in Mecca.
An outside picture of the pilgrims circumambulating the Sacred House of God around the Holy Kaaba in the Holy Mosque of Mecca in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, performing the rituals of Hajj and Umrah, Islamic holy places, Hajj seaso
Pilgrims and Umrah pilgrims in the quest in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, the quest between Safa and Marwa, the performance of Hajj and Umrah, the obligatory Hajj, worship and getting closer to God, Islamic religious landmarks, Isla
Performing Hajj and Umrah rituals, sacred Islamic religious places and landmarks in the Kingdom of Saudi Arabia, visiting the Holy House of God, a group of pilgrims walking on the Jamarat Bridge in Mecca.
An aerial view of the holy sites in Makkah Al-Mukarramah during the days of Hajj season 2023, standing on Mount Arafat, pilgrims staying overnight in the tents of Mash’ar Mina, performing the rituals in Mash’ar Muzdalifah, throwing stones, worshiping and
Portrait of a Saudi Arabian Gulf man wearing the Ihram dress and raising his hands to pray and supplicate to God, performing Hajj and Umrah, worship and getting closer to God, prayer and glorification, remembrances and supplications
Entrance gate to the Prophet’s Mosque, performing prayers in the Prophet’s Mosque in Medina, worship and getting closer to God, sacred religious landmarks and places in Saudi Arabia, interior decorations and designs in the Islamic style
Sacred Islamic religious places and landmarks in the Kingdom of Saudi Arabia, performing Hajj and Umrah rituals, visiting the Holy House of God, a group of pilgrims walking on the Jamarat Bridge in Mecca.
Paved roads and streets during the day, pilgrims’ tents in Mina in Mecca, mountain peaks and heights in Arafat, Hajj season in the Kingdom of Saudi Arabia, performance of religious rituals and duties, holy Islamic places, the concept of worship and getting closer to God Almighty.
The architectural engineering art of the Meccan clock tower overlooking the Grand Mosque, circumambulation around the Holy Kaaba, pilgrims of the House of God in the Holy Mosque of Mecca in Mecca in the Kingdom of Saudi Arabia, performing Hajj and Umrah rituals, sacred Islamic religious places and landmarks
Worship and closeness to God, the Royal Clock Tower building in Mecca, the architectural art of skyscrapers, sacred Islamic religious landmarks, a close-up of pilgrims in the Holy Mosque of Mecca in the Kingdom of Saudi Arabia, a view of the cloudy sky
Performing Hajj and Umrah rituals in the month of Dhul-Hijjah, worship and drawing closer to Allah, the road leading to the Jamarat area in Mecca, famous Islamic religious landmarks, a view from the back of a group of pilgrims and Umrah performers walking through a tunnel, Muslims gathered from all over the world
Architectural engineering art in the modern Islamic style, the sa’i between Safa and Marwah in Mecca, a close-up of the sa’i in the Holy Mosque of Mecca, performing the duties and acts of worship and getting closer to God, sacred places and landmarks in the Kingdom of Saudi Arabia
A picture of the Grand Mosque in Mecca, the Grand Mosque in Saudi Arabia, worship and getting closer to God, Islamic religious landmarks in Saudi Arabia
Sacred Islamic religious landmarks in the Kingdom of Saudi Arabia, the doors of the Grand Mosque in Mecca, performing Hajj and Umrah rituals, worship and drawing closer to God
The Royal Clock Tower building in the Grand Mosque illuminated at night, pilgrims and Umrah performers in the Holy Mosque, Islamic architectural style of towers and skyscrapers in Mecca, landmarks and sacred religious places in the Kingdom of Saudi Arabia
Sacred Islamic religious places and landmarks in the Kingdom, a group of visitors to the Holy House of God at the Kudai bus stop next to the Grand Mosque in Mecca, means of transport and communications, religious tourism in Saudi Arabia, the destination of Muslims from all over the world to perform worship and get closer to God
The concept of good company, a picture from the back of a group of female friends standing in front of the Kaaba in the Grand Mosque in Mecca, the concept of worship and drawing closer to God, sacred Islamic religious places and landmarks in the Kingdom of Saudi Arabia, performing the Hajj and Umrah rituals in Mecca
The concept of time management, a portrait of an elderly Muslim Arab Saudi Gulf man wearing ihram clothes and using an electronic wristwatch, knowing and setting the time, the Hajj season 2023, performing the rituals of Hajj and Umrah, the fifth pillar of
Pilgrims and Umrah pilgrims in the quest in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, the quest between Safa and Marwa, the performance of Hajj and Umrah, the obligatory Hajj, worship and getting closer to God, Islamic religious landmarks, Isla
Two Arab men from Sudan sitting on the plane and wearing Ihram clothes, traveling to Mecca to perform the rituals of Hajj and Umrah, the mobile phone with a blank black screen, displaying the services and guiding applications to perform the rituals of Haj
A picture of the worshipers at the Kaaba in the Great Mosque of Mecca in the Kingdom of Saudi Arabia, performing Hajj and Umrah, circumambulating the Kaaba, worshiping and getting closer to God, Islamic religious landmarks in Saudi Arabia, black and white
Towers and skyscrapers, the Holy Kaaba in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, the Clock Tower in Makkah Al-Mukarramah, architectural art, Islamic religious sacred places and monuments
The architectural engineering art of building towers and hotels surrounding the Holy Mosque of Mecca, a close-up of the Royal Clock Tower building in Mecca, holy Islamic landmarks and places, urban development in the modern and advanced style in the Kingdom of Saudi Arabia
Muslims gathered in front of the Prophet’s Mosque, sacred Islamic religious landmarks in the Kingdom of Saudi Arabia, electronic awnings for shade and protection in the square of the Prophet’s Mosque in Medina at sunset, places to perform the obligatory prayers and worship and get closer to God.
Taking memorial photos via mobile phone, live video broadcast, two Arab men from Sudan sitting on the plane and wearing Ihram clothes, traveling to Mecca to perform Hajj and Umrah, Hajj season 2023, performing Umrah in Ramadan, Saudi Airlines
Islamic religious places and landmarks, Performing Hajj and Umrah rituals, Pilgrims and Umrah performers wearing Ihram clothes in Mas'a in Mecca, Saudi Arabia, Worship and drawing closer to Allah, Sa'i between Safa and Marwa, Islamic architectural art
Muslim pilgrims perform prayers around the Holy Kaaba in Mecca, Islamic religious landmarks, worship and getting closer to God, performing Hajj and Umrah rituals, the Holy Mosque of Mecca in Mecca, the Kingdom of Saudi Arabia
Pilgrims circumambulating the Kaaba, the Holy Mosque in Mecca, Saudi Arabia, performing Hajj and Umrah, worship and getting closer to God, Islamic religious landmarks, Hajj season
Preserving the five daily prayers, the virtue of Umrah in the blessed month of Ramadan, drawing closer to God with good deeds, a portrait from behind of a young Saudi Arab Gulf man wearing the Ihram clothes preparing to meet God's call to Hajj and Umrah,
Facial gestures indicating happiness, a portrait of a Saudi Arabian Gulf Muslim young man wearing ihram clothes, looking at the camera, preparing to perform the rituals of Hajj and Umrah, the fifth pillar of Islam, Hajj season 2023, yellow background
The concept of worship and getting closer to God Almighty, using a sun umbrella for protection and shade, a portrait of a Saudi Arabian Gulf couple wearing Ihram clothes to perform Hajj and Umrah rituals, gestures of joy and happiness for visiting the Holy House of God, beige background
The Grand Mosque in Mecca, Saudi Arabia, Muslim pilgrims in the courtyards of the Grand Mosque at night performing Hajj rituals, the concept of worship and drawing closer to God, sacred Islamic religious places and landmarks
A Saudi Arabian Gulf man wears the Ihram dress and raises his hands to supplicate and supplicate to God, performing Hajj and Umrah, worshiping and getting closer to God, remembrances and supplications, background of the Kaaba
A close-up of a Saudi Arabian Gulf man wearing the Ihram dress and raising his hands to supplicate and supplicate to God, performing Hajj and Umrah, worshiping and getting closer to God, performing Hajj, remembrances and supplications
Portrait of an elderly Muslim Gulf Arab Saudi man wearing ihram clothes and holding a white umbrella in his hand, Hajj season 2023, performing Hajj and Umrah rituals, the fifth pillar of Islam, blue background
Wearing Ihram clothes, traveling to Mecca to perform the rituals of Hajj and Umrah, a Sudanese Arab man reading and reciting the Qur’an, sitting in the seat of the plane, memorizing and interpreting the Holy Qur’an, Hajj season 2023, performing Umrah in R
A group of Muslim pilgrims wearing the Ihram dress, performing prayer at the Sayeda Aisha Mosque in the Miqat al-Tana’im in Makkah, preparing to perform Hajj in Makkah al-Mukarramah, Saudi Arabia, Hajj season 2022, worshiping and getting closer to God
A picture from inside the Kaaba (the Qibla of Muslims) in Makkah Al-Mukarramah in the Kingdom of Saudi Arabia, worship and getting closer to God, photography from inside the Great Mosque of Mecca, circumambulation around the Kaaba, performing the Hajj, Mu
The Prophet’s Mosque in broad daylight, sacred Islamic religious landmarks and places in the Kingdom of Saudi Arabia, worship and closeness to God, electronic awnings for shade and protection, the square of the Prophet’s Mosque in Medina
The concept of intimacy between spouses, visiting the Holy House of Allah in Mecca, close-up portrait from the back of a Saudi Arabian Gulf couple wearing Ihram clothes preparing to perform the Hajj and Umrah rituals, getting closer to Allah through good deeds, fulfilling the fifth pillar of Islam, full-length body, beige background
Performing the rituals of Hajj and Umrah in the Hajj season 2023, a Saudi Arabian Gulf couple wearing Ihram clothes and a protective mask and holding an umbrella in their hands, Umrah in the blessed month of Ramadan, drawing closer to God with good deeds,
The arrival of pilgrims from inside Saudi Arabia, supplication, worship and closeness to God, the virtue of Umrah in the blessed month of Ramadan, a picture from the back of a young Saudi Arabian Gulf Muslim wearing the Ihram clothes, supplication and ple
Taking a souvenir photo via mobile phone, a portrait of an elderly Muslim Gulf Arab Saudi man wearing ihram clothes, live video broadcast, using modern technical devices, performing Hajj and Umrah rituals, the fifth pillar of Islam, Hajj season 2023, blue
The Noble Sanctuary in Mecca, Saudi Arabia, Performing Hajj and Umrah, Hajj season 2023, Muslim pilgrims circumambulate the Holy Kaaba in Mecca, the Grand Mosque
A picture of the door of the Grand Mosque in Mecca in the city of Mecca in the Kingdom of Saudi Arabia, the background of the Grand Mosque from the outside and inside
Night aesthetic image of the clock tower in the holy city of Mecca in Saudi Arabia, the towers of the Holy Mosque in Mecca, the House of God, the Holy Mosque in Mecca, famous Islamic religious landmarks in Saudi Arabia, architectural art in Saudi Arabia
A picture of the pilgrims to the Sacred House of God, the Pause of Arafat, Mount of Mercy (Arafah), performing Hajj and Umrah, performing Hajj, worship and getting closer to God, Hajj season 2022, Islam and worship
Muslims coming from all over the world to perform worship and get closer to God, sacred Islamic landmarks, luxury hotels and towers surrounding the mosque, the outer courtyard of the Holy Mosque in Mecca, pilgrims and Umrah performers in the outer courtyard of the Holy House of God waiting for the Maghrib call to prayer for breaking the fast.
Performing Hajj and Umrah rituals, minarets of the Grand Mosque in Makkah Al-Mukarramah, sacred Islamic religious landmarks, Hajj season 2023, the square of the Grand Mosque in the Kingdom of Saudi Arabia, towers and skyscrapers, Islamic architectural art
Diligence in obedience, supplication, worship, and drawing closer to God in the blessed months, the fifth pillar of Islam, a picture from behind of a Muslim, Arab, Saudi, Gulf pilgrim, performing the rituals of Hajj and Umrah, wearing the Ihram clothes, H
Islamic style interior decorations and designs, a picture from inside the Prophet's Mosque in Medina, architectural art, worship and closeness to God, sacred Islamic places and landmarks in the Kingdom of Saudi Arabia, spiritual religious atmosphere
Worship and getting closer to God, performing the rituals of Hajj and Umrah, a portrait of an elderly Muslim Arab Saudi Gulf man wearing ihram clothes and raising his hand to say hello and peace, the fifth pillar of Islam, Hajj season 2023, blue backgroun
Looking at the camera with gestures of pleasure, performing Hajj and Umrah rituals, portrait of a smiling Saudi Gulf Arab man wearing Ihram clothing, full length body, concept of worship and getting closer to God, white background