There is no religion in the world where there is a possibility of spiritual development outside of the context of that religion. This is only a modern invention. For example, Christian mystics were also Christians. They also went to Church and followed Christian laws. Hindu mystics were practicing Hindus; they didn't kill cows and have steak. They follow the Hindu laws and so on and so forth down the line and Sufism is no exception.
Seyyed Hossein NasrThere are millions and millions of Sufis who have existed in Islamic history and have the deepest impact on every aspect of Islamic culture and civilization to philosophy to art to science to social structure to economics who have not met the destiny of al-Hallaj.
Seyyed Hossein NasrOnly in the West did a philosophy develop that was not only no longer the love of wisdom but went so far as to deny the category of wisdom as a legitimate form of knowledge. The result was a hatred of wisdom that should more appropriately be called โmisosophyโ (literarily hatred of Sophia, Wisdom) rather than philosophy.
Seyyed Hossein NasrThe human soul, provided it is pure and strong enough, can contact the unseen in waking life as well as in dreams: all that is required is withdrawal of the soul from the tumult of sensory life.
Seyyed Hossein NasrThere is an idea that you can take the spiritual teachings of a religion outside of a religion and practice them; these ideas are brought forward. That appears to be easy. You can say, "Oh, well. I don't have to bother about not eating pork, and not drinking wine, and all you have to do is read the beautiful poetry of Rumi and talk about wine, women and song. Or something like that." This kind of attitude. This is the antipode of the other attitude which says Islam is nothing but throwing bombs, it has nothing to do with internal or inward purification.
Seyyed Hossein Nasr