Hi Matt M.
I love the question. People write big books on this topic.
The "true reality" does exist as the true reality. It is what It is. What I mean is for there to be a "true reality" it must be exact in all aspects. It has nothing to do with human concepts and feelings. The "true reality" is beyond.
I will do my best to explain:
I time could freeze for a moment and we could step out side of existence. ( I know not possible because we would still have to exist), anyway. We would be able to see all the galaxies, stars, asteriods, planets, moons, life forms, etc. I by some way possible we could see every detail of existence with "perfect" vision. We would know the "true reality" on a physical level at that piont in time. What is gion on in the minds and hearts of the living entities is another story.
Or let me explain it this way:
If we took a movie and froze a particular scene we could see the "true reality" as far as our eyes could see and our instruments could measure. We still would not konw the minds of the eneities in the scene, but that will also be part of the true reality. It will all exist, but with such limited ability we would not beable to percieve the "true reality".
I have left out the time element, because that will only complicate matters further. I hope my writing was not too hard to follow.
Concnusion: There is a true reality. The only way to know what it is a being would have to be omniscient, omnipotent, omnipresent, and infallable in all respects.