Grand Ayatollah Imam Muhammad Shirazi is undoubtedly the most eminent authority on Islam in modern times. An outstanding Islamic scholar-leader, he is a Marje‘ or religious authority to millions of Muslims around the globe. A charismatic leader who was known for his high moral values, modesty, and spirituality, Imam Shirazi is a mentor and a source of aspiration to Muslims; and the means of access to authentic knowledge and teachings of Islam. He tirelessly devoted himself, and his life, to the cause of Muslims in particular, and those of mankind in general. In presenting the Teachings of Islam on the various aspect of life in this world and in the hereafter, he has made extensive contributions in various fields of learning ranging from Jurisprudence and Theology to Politics, Economics, Non-violence, and Human Rights.