Rugs and the Meaning of Life

This title was misleading here. This is an article about drugs, not rugs.

The author says that psychedelic drugs are "one of the most important rites of passage a human being can experience," yet also that "there is nothing that one can experience on a drug that is not, at some level, an expression of the brain’s potential." This seems like a contradiction of sorts, and I wonder if he's trying too hard to make a case for drugs based on his own experiences.