Existence and not-existence.
The field not becomes available when we understand the field as field. Being in one side noticing the field creates a duality a separation letting the observer out of the field which includes everything.
In the psychological realm where things are not so solid it is possible to say that not not-existence perhaps emphasizes the non-duality of the field. Everything is included, the both sides of a coin, bitter-sweet, just one taste, no existential crisis.
What is the feeling of this not not-existent field? Just imagine a surfer diving in a huge “tubeâ€. Not fear of falling down, not pride of being up, just floating, perfectly balanced, one with the wave. Not feeling “I†am in the tube. Just being aware of the movement, tuned in with the movement.