The treatise Commentary on the Book of the Kings of Truth (Hashieh bar Haqq-ol Haqqayeq, 1967) contains explanations of certain terms and expressions used in the epic The Book of the Kings of Truth (Shahnameh-ye Haqqiqat) by Hadj Nematollah Mokri Jeyhounabadi, Ostad Elahi's father. Composed in the span of forty days, Ostad Elahi recounts how his father paced across the room and dictated the 15,000 verses of this epic while he rapidly transcribed them.

The Book of the Kings of Truth relays the history of religions, the biographies and ranks of prophets and saints as well as prominent figures in the history of humanity, all from the unique perspective of Hadj Nemat and his emphasis on the purpose of the universe and the process of spiritual perfection of beings. The work describes, particularly through the accounts of the successive manifestations of the divine Essence and His representatives, how they came into being in each era for the purpose of guiding humanity. In the last section, Hadj Nemat alludes to his own spiritual calling as well.

In this treatise Ostad Elahi also explains and sheds new light on the meaning of some of the complex terminology and poetic interpretations of his father's work, including apparent ambiguities regarding historical events, the concept of divine manifestation, and in general the paradoxes that might be perceived throughout the text. The Commentary emphasizes that overall The Book of the Kings of Truth is not a compilation of legends, but rather is predicated on allegorical spiritual realities.

Excerpts from Commentary on the Book of the Kings of Truth