When we are deeply present with existence as it happens - it can become clear that all there is is existence as it happens.
This sense emerges when narrative constructions of thought are dimmed or absent. There is a shift to the sense of existence as a flow or happening. We are all familiar with this to some extent: think of a time when you went on vacation. You're walking by the sea, the waves are crashing, the air is misty and cool. Everything is new, fresh… you feel alive, exalted, and extremely present. Suddenly it's as if life is a 3D film unfolding in real-time - there is no separation from the shifting scenario… the whole scene is alive. At this point the sense of the tightly constructed memory-based self has given way to the happening of the moment - the momentum of existence.
This is the essence of awakening: awakening from a sense of separation from the event of life.