I am afraid there may not exist any meaningful descriptions for 'existence' that would do much better than giving a synonym. Do you have any in mind?
Sorry, it is sometimes difficult to find the right words to verbally relate what one experiences or think they understand to someone else.
Your questions help me to try to find better ways clarify my statements.
Do you mean ( there is nothing to perceive or be aware of with human senses ) to the something trying to perceive something else, or for someone to perceive this transcendent something?
There's a very bright light of which there is no source. It is all there is. There is nothing else discernible. No shape, no space, no time. Light and a feeling of a presence. However there is no object or source to attach that presence to. There is a feeling of love with nothing to attach it to.
It's hard to say God exists when there is nothing separately discernible from existence itself.
I don't know how that helps with this debate except there is no suffering there. All suffering seems like something remembered from a dream that was not every actually real.
So while I perceive suffering here, it is no longer real. It's a perception. It's not unpleasant nor something to avoid because I can feel. Even if it is only a perception it's a gift to be able to feel pain at all. It lets me know I exist.
It may indeed be seen as an alarm. An unpleasant alarm ( and useless in some situations ) . Do you have any reason to not consider it unpleasant? Don't you experience it yourself? Or are you being skeptical of your own perception?
Other than specific exceptions i find that pain fits the following definition:"An unpleasant sensation occurring in varying degrees of severity as a consequence of injury, disease, or emotional disorder."
I am skeptical of pain's reality. However the perception of these things adds flavor to existence.