Dick's experiences were mostly with amphetamines, not psychedelics. Most don't include LSD and psilocybin as "hard drugs," either, and all of the credible drug advocates I've seen have always clearly stated that one should carefully research and consider before taking any drug into one's body, and advise against those with predispositions to mental illness or who feel that they are not ready for such experiences or capable of properly preparing for them ("set and setting"). (http://en.wikipedia.org/wiki/File:Rational_scale_to_assess_t...)