I do it because I enjoy it, but I use small amounts for stomach pains that I get frequently and to make my sleep more restful, even if it is only for maybe 4 hours. Also, I kind of use it as a psychological medicine. Whenever something is bothering me, I'll get really high and then just do whatever I want. By the end of that session I know the answer to my problem. It also helps me discover the source of the problem and to see my own faults that I might miss.