One of the classics of the field, with the legendary Alan Watts recounting lessons learned from his early 1960s LSD trips in a style just as eloquent as his famous radio lectures. Comparable to "The Doors Of Perception" but at least to me superior; less entangled in pre-existing learning and more open to the experience itself. Watts' conclusions from the LSD insights are surprising and individualistic, and do not necessarily conform to the Eastern-oriented school of thought he usually propagated. Contains a famous aural trip through a christian mass with organ music which is as good a summary of the acid experience as you can find. A must read, sort of like the Rolls Royce of trip journals. Illustrated with photographs of natural phenomena whose psychedelic nature is brought to light, cool concept. Original softcovers are fairly easy to find and sport an intro by Leary & Alpert from when they were just two renegade Harvard scientists.