well ... you can use everything for the bad! ... you can even drink too much water too fast and that would also cause huge troubles! ... paracelsus taught us that everything can be medicine or poison depending on how we use it! ... of course the hype around such drugs is probably not good ... and even taking drugs in order to get some enlightement is not the best way to aim for, but for some people it can be medicine! ... whilst using such a medicine our intent is of most importance! ... [ i prefer meditation and hard inner work in order to get some higher experiences ]