" In certain ancient civilizations and indigenous cultures there was often a process of initiation that young people would go through before they became adults. In some Native American traditions, for example, the initiate would be put out into the wilderness without any food or any other provisions for survival. He would have to rely on the Universe and his own soul. During the experience, the initiate would fast. He would experience himself confronting the Universe alone. He would be out there for a number of days. This would open up the initiate to a direct experience of something beyond the usual egoic mind and all of its concerns. The initiate would be thrust into an experience that would take him beyond his small, limited self. Such a process existed in our own Tradition going back to the Prophet Muhammad, peace be upon him. What was Muhammad doing in a cave when the first revelations of the Qur‘an began if not going through what Native Americans would call a „Vision Quest“? He received direct revelation and inspiration through this practice. (p. 12) "

― Kabir Helminski , In the House of Remembering: The Living Tradition of Sufi Teaching