It's been a long time, but even a few days after my first trip, I just knew that it was one of those things you cannot possibly adequately describe to anyone else, whether they have taken it themself or not. It was such an overwhelming, powerul feeling of 'differentness' and revelation of an almost religious kind, I can't explain it even to myself, now. I now accept and realise that until you are 'there again', you can't really remember what it is/eas like. I have read all the careworn phrases of other people trying to explain or describe, but have yet to find an adequate account or description - it can't be done, which, to me, is the true magic of LSD!
Perhaps, and on a very grim note, it is a biit like trying to remember how agonisingly painful toothache can be, until it happens again!