My first mind-altering experiences were courtesy of
horses; later, after my father sold my pony, I turned to substitutes. The
effects are really quite similar: a release from the pressures of everyday life,
a chance to see beyond the limits of accepted reality, and pure
exhilaration.
I think he was just trying to say that we all seek
escape, and to judge that one is acceptable and another is not, is not logically
defensible.