Artist Reply: LSD or lysergic acid diethylamide is a mind altering drug that can cause reactions months or even years later where the person "trips out" or becomes again under an alter state where some some people have walked off a six story building or stepped onto the path of an on-coming train. I wish that eveyone could ask the question you posed and we all could ask what is crack, crank, crystal meth, etc. All of these drugs are a straight pathway to hell and oblivion. Look at the misery and wasted lives, and the horror and hearthache our "drug culture " has spawned. I wish that we were all ignorant about these demonic and deadly potions.