A Pillar of Islam and a Spiritual Journey Hajj is the fifth pillar of Islam, and is a duty that every able Muslim must perform once in their lifetime. The Hajj journey is a profound spiritual experience that brings Muslims from all over the world together in Makkah and Madinah to perform the religious rituals. Pillars of Hajj: Ihram: Wearing the Ihram garments and heading to the designated place for Ihram. Waqf at Arafat: Standing on the plain of Arafat on the Day of Arafat, which is the most important pillar of Hajj. Sleeping in Muzdalifah: Spending a night in Muzdalifah after leaving Arafat. Stoning the Jamarat: Throwing seven pebbles at the three Jamarat during the days of Tashreeq. Tawaf and Sa'i: Circumambulating the Kaaba and Sa'i between Safa and Marwah. Shaving or trimming the head: Shaving the head or trimming the hair after completing the rituals.