Can't agree strongly enough. Even with meditation, where the whole point is (in a sense) to wake up to one's entire field of experience, people are generally unwilling to dig under their own metaphysical layers. They write this off as "oh, I don't do metaphysics." Yes, you do; you're just unwilling to face it.

I updated my post above with a link to a first draft of a site where I go into a little more detail.