Don't Cleanse the Doors of Perception: Go Beyond Them
William Blake says: "If the doors of perception were cleansed everything would appear to man as it really is.. Infinite."
No need to cleanse the doors of perception. The doors of perception only lead in one direction - outward.
If the Self is known as it really is the doors of perception themselves would be momentary appearances that change in the presence of the Infinite Unchange-able One.