Inspired by Ajahn Brahm’s insightful “fruit salad simile” which describes experiences in Theravada Buddhist meditation, we develop an original model to reveal the principle of “non-self” by introducing “awareness of awareness” out of the framework of the five aggregates:
If we regard each aggregate as an “awareness” which is the state of being conscious of something, then contemplating the five aggregates would reveal the existence of “awareness of awareness”, and discern that it arises a moment after each aggregate and they do not appear simultaneously.
Thus, the slowing down of “speed” in vipassana would reveal that the notion that there is a constant entity always there knowing or experiencing all aggregates just results from the alternation of “awareness” (or “aggregates”) and “awareness of awareness”, something that under ordinary conditions happens very quickly. (That’s like a torch spinning so fast that it looks like a solid ring of fire exists.)
This would lead to the insight of “non-self”: no subject (or mental entity) of awareness at all.
Intrinsically, the illusion that there is a self underlying the five aggregates means a two-tier structure like that of Cartesian Theatre or “Cogito, ergo sum”. However, the slowing down of “speed” in vipassanā reveals that the reality is single-tier. (The “self” in Buddhism’s “non-self” is actually the “I” in Descartes’ “I think, therefore I am.”)