"The Greatest Secret" is a book by Dr. Mustafa Mahmoud in which he discusses many philosophical Sufi ideas, drawing from the poetry and writings of pioneers in philosophical Sufism such as Ibn Arabi, Abu al-Aza'im, and other great figures of this school of thought. It is an enjoyable journey into the Sufi heritage, from which the reader gains rich information about many matters such as unity, incarnation, manifestation, the theory of witnessing, exhausting spiritual exercises, asceticism, and other philosophical Sufi ideas and beliefs. The book is a journey into the depths of the Sufi heritage, exploring its strengths and weaknesses.

Excerpts from the book:

• “Ibn Arabi says: I advise you not to despise anyone or anything of God's creation, for God did not despise it when He created it.”
• “The inability to grasp perception is itself perception. That is, if you are incapable and completely bewildered and realize that you are ignorant, then you have truly learned.”
• “Abu al-Aza'im says: The happy one among creation is he who knows the wisdom of his creation and the secret of his sustenance.”

Book Details:

• Author: Mustafa Mahmoud
• Publisher: Dar Akhbar El Yom - Cairo
• Year of Publication: 2008
• Number of Parts: 1
• Number of Pages: 135
• Binding: Paperback
• Paper Type: White
• Printing: One color
• ISBN: 9770810878