I used LSD from approximately 1972 to 1974. Throughout that period of time I used the LSD approximately ten to fifteen times. I would ingest the LSD on a sugar cube or in a hard form of gelatin. I would usually take the LSD when I was by myself. I have no words to explain the effect the LSD had on me, although, I can say it was a positive life changing experience for me and I am glad I went through that experience.