Pilgrimage Mecca is a term used to describe the journey of Muslims to the holy city of Mecca in Saudi Arabia. The pilgrimage is known as the Hajj and is one of the five pillars of Islam. It is a spiritual journey that is undertaken by millions of Muslims each year, and is considered to be a great honor. The Hajj is a time for reflection and prayer, and is seen as a way to strengthen one's faith.