Hajj features one of the necessary acts of worship and is among the corollaries of Islam. Being a historical indication of prophet's struggles for guidance of people since the Prophet Abraham it implies many valuable truths worth to know. As it is told that every truth has an outside and an inside, one needs to approach Hajj in this spirit. This book seeks to give an account of the outer and inner nature of Hajj.

Abdollah Javadi-Amoli is an Iranian Twelver Shi'a Marja. He is a conservative Iranian politician and one of the prominent Islamic scholars of the Hawza in Qom. The official website for his scientific foundation, Isra, describes him as a well-known, outstanding thinker in various fields of Islamic sciences and a distinguished figure in exegesis, jurisprudence, philosophy and mysticism. It is further states that his ideas and views have been reinforcing the Islamic Republic of Iran since the 1979 Islamic Revolution, and that "his strategic and enlightening guidance" has been "extremely constructive" during the past three decades.