Mental illness...it's gotta be a form of chronic suffering brought on by one's own thoughts, right? Whether it's a suffering brought on by too much logic, or not enough, or logic that is mixed up with imagination to lead a person to muddled and problematic conclusions that affects their daily lives. Mere chemical imbalances could very well be the cause of it all, but I feel the labels we have for the particulars are little more than metaphors at best, and pigeon-holes, at worst, and the states we are in are elastic and dynamic. If cognitive behavioral therapy is valid, then that teaches us that simply reassessing our assumptions about certain things can do a world of good and possibly alter our chemical balances just as much, or more, than most therapeutic drugs can. In other words, simply digesting new information can affect our emotions just as much as digesting new chemicals, so there is a complex interplay going on.