User blog comment:PullingoffMasks/Mental Health and the Mythos/@comment-24399271-20140128215221

This is very good, except for your characterization of insanity as a purely legal term. I agree that the word insane or insanity should never be used to refer to a traditionally-speaking mentally disabled person, but it may be useful to describe Fear-induced loss of mental stability as insanity. Perhaps madness would be better? I think the word insanity is overall much less potentially offensive than insane.

Also, although it is not very well known, using synesthesia in writing has become increasingly popular. Synesthesia is a very complex condition, so I won't go into depth or even try to describe it here. However, it is not a disorder, malfunction, or disease. It is not induced by psychoactive drugs, but similar symptoms are. It is a real neurological condition, not the fantasies or ruminations of artistic people. If you want to use synesthetic concepts, do your researh.