“Christian scholars often say that Sufi theories are close to those of Christianity. Many Moslems maintain that they are essentially derived from Islam. The resemblance of many Sufi ideas to those of several religious and esoteric systems are sometimes taken as evidence of derivation. The Islamic interpretation is that religion is of one origin, differences being due to local or historical causes.”

Afghan author, thinker, and teacher, 20th century

Idries Shah, also known as Idris Shah and Indries Shah, was an Afghan author, thinker, and teacher in the Sufi tradition. He wrote in the 20th century and used the pen name Arkon Daraul. He is remembered for work that brought together Sufi teaching, psychology, spirituality, travel writing, and cultural studies. Shah wrote more than three dozen books across those fields, moving between reflective, practical, and exploratory subjects. His work often connects inner life with broader questions of culture and belief, which is why he is read both as a spiritual writer and as an interpreter of ideas and traditions.