ravenest
And there are many who would say Crowley himself was insane. He would certainly make for an interesting case study. I think any "mind altering," whether through ritual or drugs, is subject to wildly differing points of view. As ravenest said, for many simply practicing magick is a sure sign of insanity.
However, it does raise the question, can someone clinically insane carry out their Will? I seem to remember reading something, maybe by IAO131, about this. An example of a heroin addict was mentioned, and the question raised was whether they would be fulfilling their Will by quitting and whether the experience of addiction itself facilitated finding one's Will later on (by quitting).
I dont see why being a heroin addict can not be someone's will. In most cases I dont think it would be, and it can work to erode the will , but if we come here to experience all sorts of experience ... and particularly if one holds the reincarnation belief , all experiences are valid.
I read a great story about how these thelemites kept saving their mate from heroin and helping him get off it and hassle etc. After about the 4th cycle he told them to F. off "Cant you see this is what I want to do ... its what I choose to do ." So they left him to it.
No, it might not have actually been his will .... but are we going to start judging and dictating what others True Will should be ?