The Immortality Key: The Secret History of the Religion with No NameTHE NEW YORK TIMES BESTSELLER As seen on The Joe Rogan Experience A groundbreaking dive into the role psychedelics have played in the origins of Western civilization, and the real life quest for the Holy Grail that could shake the Church to its foundations. The most influential religious historian of the 20th century, Huston Smith, once referred to it as the best kept secret in history. Did the Ancient Greeks use drugs to find God? And did the