There's good evidence that the degree to which a person has a "mystical-type experience" is a good predictor of the benefit. This is not surprising if you've t

There's good evidence that the degree to which a person has a "mystical-type experience" is a good predictor of the benefit. This is not surprising if you've taken it before. It's the experience itself that's liberating, much in the same way that other profoundly meaningful experiences in life depend on you actually "being there" to have any benefit.