The human mind will never fully comprehend the nature of the physical reality, for two very important reasons.

First, the physical reality is infinite, and the brain’s computational capacity is finite. A finite analytical organ can never analyze infinite complexity to completion.

Second, the brain is itself a part of the physical reality, and no part of the system can comprehend the full system, it’s impossible. It can only build a model of the system, and the smaller the part is, the more crude the model will be. Comprehending the system entirely is logically equivalent to becoming the system, but then it cannot be said to be comprehension but simply being it, or knowing it.

Experientially, that’s basically what spiritual enlightenment is. Oneness with reality is knowing reality, not comprehending reality. For as long as you’re trying to comprehend reality, you are separated from reality. Knowing reality, or simply being it can only be direct, not analytical.

However, what human mind can comprehend is itself, that is, the multitude of unconscious layers of dreaming which separate the mind from direct knowledge and experience of reality, as well as direct knowledge of the two facts I outlined above. That is possible, because the dreaming mind is finite. Dreaming can be both comprehended and abandoned. In fact, these two are equivalent - what is abandoned becomes comprehended.

But the infinity and non-comprehensibility of reality, which the brain is itself a part of, cannot be overcome.

How boring it would be otherwise! Hahaha.