Updated January 7, 2023

Photo © Alexius Jorgensen.
What you believe in experiencing right now happened one second ago because it has taken the brain a second to produce your present experience. And then again, it did not occur because the brain created it from nothing and not from info received from your sensory system. The latter the brain presents as a fact, and you believe it because otherwise you are exposed as nothing. Read more about that in Where to find the bliss of the empty breath.
The bliss of emptiness is, therefore, only one second away. Going back a second requires nothing but to perceive your present experience as dunno what it is (read more about this in hack #4.2 The brain’s script and how to perceive it to feel happy). Doing that, the undefined moment ignites a take-off into the empty breath (see hack #5.1 Uncontrolled speed leads to a state of not-knowing), revealing the nothingness from where the brain produces the experiences where you appear to be somebody in a world of something.
It is not a revelation where emptiness is exposed. But where something is revealed as nothing. Not in the sense that you stop seeing something but that you perceive it as nothing. You do not appear to be somebody in the absence of something, but nobody walking on blissful clouds of frictionless love. Read more about that in hack #5.2 The empty breath and the bliss of nothing.