Disclosure of hidden behind the curtain for the knowledgeable in the secrets of hearts. The oldest Persian treatise on Sufism

The treatise is one of the most complete and authoritative guidelines for Sufism for the dervishes of most Sufi brotherhoods. It is written in the XI century. And it is the earliest treatise on Sufism in the Persian language, covering the extensive circle of problems of the theory and practice of Sufism and creating a holistic idea of ​​this spiritual tradition. Its author, an encyclopedic scientist, first published unique information about the Sufis, so little known to the uninitiated that many believed that he simply invented part of the material. The book can be useful to everyone who is interested in the spiritual and religious traditions of the East, its philosophy, history and culture of thinking, etiquette and customs