Carl Sagan on Pot
This  account was written in 1969 for publication in "Marihuana Reconsidered  (1971)". Sagan was in his mid-thirties at that time. He continued to use  cannabis for the rest of his life. 
The cannabis experience has greatly improved my  appreciation for art, a subject which I had never much appreciated  before. The understanding of the intent of the artist which I can  achieve when high sometimes carries over to when I'm down. This is one  of many human frontiers which cannabis has helped me traverse. There  also have been some art-related insights - I don't know whether they are  true or false, but they were fun to formulate. For example, I have  spent some time high looking at the work of the Belgian surrealist Yves  Tanguey. Some years later, I emerged from a long swim in the Caribbean  and sank exhausted onto a beach formed from the erosion of a nearby  coral reef. In idly examining the arcuate pastel-colored coral fragments  which made up the beach, I saw before me a vast Tanguey painting.  Perhaps Tanguey visited such a beach in his childhood. A very similar improvement in my appreciation of music has occurred with  cannabis. For the first time I have been able to hear the separate  parts of a three-part harmony and the richness of the counterpoint. I  have since discovered that professional musicians can quite easily keep  many separate parts going simultaneously in their heads, but this was  the first time for me. Again, the learning experience when high has at  least to some extent carried over when I'm down. The enjoyment of food  is amplified; tastes and aromas emerge that for some reason we  ordinarily seem to be too busy to notice. I am able to give my full  attention to the sensation. A potato will have a texture, a body, and  taste like that of other potatoes, but much more so. Cannabis also  enhances the enjoyment of sex - on the one hand it gives an exquisite  sensitivity, but on the other hand it postpones orgasm: in part by  distracting me with the profusion of image passing before my eyes. The  actual duration of orgasm seems to lengthen greatly, but this may be the  usual experience of time expansion which comes with cannabis smoking.