That's what The Witness is about--gaining knowledge to make sense of the island and its gorgeous but exotic environments. The Witness molds its world, puzzles, and themes into such a layered, cohesive whole that, if we look hard enough, we'll keep finding new ways to perceive it.
There are still things about The Witness I can't make sense of--some clues I might never notice, and some puzzles I might never solve. But the hints are there. It might not all be clear at first, but that's okay, because I'm always learning.