Narkissos:
It is quite ironic that the essence of this stuff is found in most religious traditions, including Christianity (as the Christian mystics did not miss) yet it is lost under a mountain of dogmatic beliefs, ritual practices and moral precepts which are the sum of religion to the majority.
Yes, a humongous irony. Perhaps religion is the outcome of the futile attempt to own or somehow bottle the essence.
It is also ironic (to me) that so often this deconstruction of identity is immediately reconstructed as another identity or supra-identity ("true Self," "true I," "true Consciousness" -- insert your own favourite capitalised substitute for "God" or "Christ" or "Buddha").
It certainly seem to be the case that the mental concepts of non-ego can all too easily be incorporated into the ego. It can get pretty tricky at times, and Eckhart often points out that "spiritual seekers" need to be especially wary of this.
Whatever, I hold "this" to be potentially both helpful and harmful. A remedy and a poison that I would definitely not recommend to everybody, only to people whom I feel need it. Btw I suspect that anyone who does need it will find it when s/he really needs it, with, without or in spite of what I may say about it. The only value of hinting to "it," imo, is to help people who get "there" know (or believe?) that they are not crazy -- or that they are not the only crazy ones...
In my own case I have found that if there is no readiness for something, there is no comprehension and it all just seems crazy -- no harm done. When there is readiness, it is as if the knowledge exists whole within already, and the guidance heard is just a reminder of what already is.
j