“Thus the existence of a real object outside me is never given directly in perception, but can only be added in thought to what is a modification of inner sense as its external cause, and hence can only be inferred.”
(Kant, Critique of Pure Reason, 1781)
“All that we see or seem is but a dream within a dream.”
(Edgar Allan Poe)
“Perception” is a useful word. It’s also systematically misleading. This is because the term suggests that each of us enjoys direct access to our local surroundings, including one’s extra-cranial body. “Cross-modally matched real-time egocentric world-simulation” might be more apt; alas, it’s a mouthful. Either way, the external environment may be inferred; it’s not accessed. The mind-independent world powerfully selects the subjective content of one’s waking world-simulation; the mind-independent world doesn’t create it.