Many religious people recognize the fact that the human mind is very “limited”. In fact, they even promote this fact, to “sort of” demonstrate how we cannot fully understand “God” and his processes of reasoning.
At the same time, their limited minds seem to know very well that there IS such a “God”, and they even know how to conclude exactly what he wants from them.
The thing is that many of the things we do not fully understand – are originated internally within our brain. They do not necessarily represent something that is “objectively” complex or hard to understand. They are complex for us.
Some good examples may be modern scientific theories, like quantum mechanics, general relativity, and especially when we start talking about things like different rates of time, many dimensions of space, dual behavior of things etc. Many of them seem to make sense to us only as mathematical formulas and not as actual behaviors. Again, it’s not that they are “wrong” or “strange” – it’s just that we grasp them as such with our limited mind.
But perhaps the most intriguing representation of this phenomenon is the human mind itself. We seem to not understand the “origins” of our consciousness, self-awareness and feeling of free will. We invented all kinds of names such as “soul” or “spirit” to explain to ourselves these experiences. Yet, at the same time, the organ that produces these feelings is the same limited organ that attempts to research them – our brain. And it is subject to the same “complex” laws of physics that it does not fully understand.