The first koan do not have rational answers. They are techniques devised over the millennia for triggering an actual experience.
Huston SmithWhen I read the Upanishads, which are part of Vedanta, I found a profundity of worldview that made my Christianity seem like third grade.
Huston SmithEntheogens are not to be lightly trifled with... However, if taken with the right attitude and in the proper setting, psychoactive drugs may produce religious experiences. ...it is far less clear that they can produce religious lives.
Huston Smith