The Secrets of the Self is a book-length, philosophical poem rooted in metaphysical thought and ideology, as well as Islamic theology. Originally published in 1915, the poem speaks of the "Self" in relation to the universe, how it is the inner power and soul of each individual human. It instructs on how to improve the Self through Love and willpower, which can then help one control the forces within the universe. The poem includes stories that illustrate its points and promotes the spread of Islamic ideals.