Originally posted by An Eternal Now:
From the 'notes' section of The Crystal and the Way of Light by Namkhai Norbu Rinpoche:
[b]"This is the self-liberation totally free from both action and reaction (rang-grol), which takes place in the very moment that any experience arises: whatever arises liberates itself as it arises, in the same way that a drawing made on water immediately disappears of its own accord. Neither an intentional action of the subject (as in Cherdrol), nor a spontaneous reaction of the subject (as in Shadrol), is required here.
Whatever arises liberates itself of itself, without the need for anyone to do anything to liberate it. The string never begins to be tied up; voidness and appearances manifest coincidently. The practitioner is like the mirror which can freely reflect whatever presents itself, without the reflections in it either sticking to it or leaving any trace in it; the reflected image liberates in the very moment that it appears.
Since there is no longer a mental subject that can be harmed by whatever manifests, it is said that at this stage the passions and whatever may arise are like a thief in an empty house.
When one manifests this ultimate capacity for self-liberation, this is the realization of the Tregchod (khregs-chod). This mode of capacity of liberation, illustrated with the image of a 'thief in an empty house', is indicated in many Dzogchen texts by teh words 'namtok penme nomedu drolwa' (rnam-rtog phan-med gnod-med-du grol-ba)"[/b]
I like this quote very much and with all due respect to Namkhai Norbu Rinpoche, I will do a slight modification to the description for this self-liberated aspect of non-dual experience. Namkhai Norbu Rinpoche may want readers to see other angles. So the modification is simply to mantain the 'essence' of what I am trying to convey, for tracking purpose.

"Whatever arises liberates itself of itself, without the need for anyone to do anything to liberate it. The string never begins to be tied up; voidness and appearances manifest coincidently."
The practitioner realises the nature of awareness as just so, manifestation as itself luminous (the dust being the mirror itself) and subsides instantly as it arises (self-luminous and empty).
The phenomena liberates at the very moment it appears. This is the natural state of what is.