i guess i will give it a shot, this was a trip with weed not too long ago, granted i have not done any hellucigenic drugs which i am trying to get my hands on some salvia to get it a shot for shamanic purposes.
But this one night in my apartment i was smoking some wee, ofcourse i love to get fucked up beyond a buzz =P with my wife next to me, she rarley smokes, and when everybody went home we went to bed, as massaged her as usual everynight b/c she has a hard time sleeping, while i do so i usually perform some reiki / healing on her aces and pains ever since i discovered i have the ability, now i reached the peak of my trip when i was messaging her in the bed, i started to get pressure in the center of my brain, mabye near the pyneal gland, not sure, but in my minds eye it was a small pressureized bright pulsating light which colors of purple, blue, yellow, and some other colors radiated off of, almost like an energy center in my brain, now i havent had "hellucinatiosn" on weed but it does bring intense realizations and the like presenting itself in the minds eye as if you were daydreaming but stronger. anywaze this energy center in my head started to hurt physicaly to wear i was holding my head with my hands b/c of the enormous pulsating of that light tense white light.
when it would reach a peak i would slip into a day dreaming deep thought uncontrollable imaginary trip where i started to experience aspects of life, everything from sexual to sexual insest, like brother/sister/mother father and sometimes animals, weird fucking shit but i had to realize it is apart of nature, even the old pagan gods of the greek pantheons and ect commited insest, not as a negative act but b/c of was in their nature since the beginning of time, also i went through experiencing aspects of rebirth, reincarnation and how everything in connected.
and after each realization ended the pulsating would start again, almost like several if not many peaks in one trip, then i started experiecing male and female forces in nature, deaht and rebirth as a human, then ascending to a spirt/lessar god, then going through the cycle again to becoe a full god, then the death rebirth further in sync with male and female forces in nature close to the source, then again experiencing the androgine/everthing the source, which then is reborn into something else which i cant recall right now then back to humanity b/c of how beautiful life and everything it is, the good and bad is all focused towards to higher good.
but yes you can at the best define your trips, just most ppl arent the reading/researching type so they wont have the terminology and scientific/new age knowledge and realizations on life to explain it, so go and start reading/researching for the rest of you life lol, its worth it, as long as you pry your mind as far as it will open, then opend even more!