@tomasCZ Hi Tom,  Fortunately for us the transpersonal psychology field have presented a few models (in slightly varying degrees) from a collection of different schools of research who claim to have discovered that even though the "Ground of Being" is an ever-present condition, permanent access to this reality requires from us a complete cognitive transition of transcendence followed by a subsequent re-inclusion of several specific "stages" of human development. To give you a flavour of what these stages are, one such model "Spiral Dynamics" successfully presents a detailed outline of what it looks like to have healthily navigated one's way to the very top rung of ego development - "construct aware / unitive self stage"  This self-actualization path is a development and transformation of our conscious and unconscious language structure and meaning making.  Once a certain degree of ego-development has been achieved, the next step for the mature self-actualizer is the shift into a permanent state of transpersonal awareness - which has now become a structure because of stability of this realization.  Of course, being an integrated path the good news is that one still has access to their ego, but the difference is now the "self" has been developed as far as we currently can take it - and of course, because the ego is now directly understood to be a construct, it can be developed even further as new structures emerge via a process of continual integration of the intellect giving form and concept to spiritual truth.  This heralds in the possibility of a transformational shift for humanity as a whole as spiritual truth will have a platform to express itself and integrate itself into conventional life.  A truly "Integrally Informed" situation. The reason you were unable to permanently reside in the "state" you experienced is because there is still work to do on the path to becoming aware of how your language structure (ego) creates your experience. I recommend you get into the work of Beck & Cowan's Spiral Dynamics model here: http://www.goodreads.com/book/show/204687.Spiral_Dynamics I'll be posting on this forum soon (for anybody who is interested) detailed information based on the research findings on the cognitive processes, behaviours and values of each stage from the perspective of the individual self-actualized person, including the last personal stage.  I'm currently in the process of obtaining more information about the 3rd tier transpersonal / spiritual structure.  -Mal