All religions have a mystic branch which describes an awareness , usually transient, of a higher order to reality in which the suffering of people is "redeemed" or put into perspective or somehow negated.
One interesting thing is that the language and imagery used by the mystics of these different and separated religious traditions are often indistinguishable from each other- it's not clear if it was St. John of the Cross or Augustine or Zen Masters Ikkyu or Dogen who is saying them.
On thing they refer to in this transcendent reality is apprehension of "the coincidence of opposites". So for example, the obvious fact that a thing cannot both be and not be at the same time is itself contradicted or "resolved". In logic we say "not both A and not A" (or else a contradiction is permitted and from there literally anything can be proven).
If I were a goldfish, no matter how right the math you read to me was, I would not understand it, you or anything it referred to. Even as the atomic bomb it described exploded, I still would not understand the nature of reality which now quite literally impinged itself on my flesh.
What would it feel like to be confronted with that kind of knowledge? Would we recognize some formulation of it but reject it, as in: both A and not A?
Would it be something impossible, existing outside of what appears to us to be exhausted possibilities?
Not A
Not not A
Not both A and not A
Not not both A and not A.
etc?
We can feel the limits of our own thinking when we reach something which is logically impossible. We just can't get our thinking around these things; contraditions seem like an absolute dead end, leading everywhere and nowhere.
Are there things in our lives which we literally experience, like an atomic bomb disntegrating a goldfish, which even as they touch us and we feel them, we simply fail to comprehend the "real" meaning of them? The breeze? A look? A birth? Suffering?
Spirtual insight may be a thing like mathematicqal talent- some people have a talent for it and some people don't. Such a talent may be completely disconnected from normal intelligence. To people who don't have it, it seems like garbage, i.e. self-contradictory, self-pacifying wishful thinking.