Door of Perception

https://www.amazon.com/Doors-Perception-Heaven-Hell/dp/0061729078/ref=sr_1_1?crid=3Q2QEYEM64W3Y&dchild=1&keywords=doors+of+perception+huxley&qid=1584685815&s=books&sprefix=doors+of+perception%2Cstripbooks%2C454&sr=1-1