Everything I've written here fails.
Any description of this points in the opposite direction. Words like emptiness or fullness, being, awareness or no-self, become objects for the hungry mind to hunt down and capture so that it can 'know' the truth, possess the truth.
It fails to recognise that those very labels are themselves only ever sounds and images appearing in the vast suchness to which they attempt to point.
And look, here I am leading you astray again..