The only answers worth having are utterly simple and clear, such that they can be grasped wholly by a single act of comprehension.
(Only such answers are lucid, unambiguous, hence even potentially-valid.)
Utterly simple and clear... Yet of course reality is (ahem) extremely complex...
So how does this work?
It works because :
1. We must know enough to ask exactly the right question, and
2. We must know enough to understand the simple-clear answer.
This point is general; whether we are talking about science, metaphysics or Christianity. The only answers worth having are simple and clear; but knowing enough to ask the right questions and to understand these simple-clear answers requires a lot of effort and time.