The really important facts were that spatial relationships had ceased to matter very much and that my mind perceived the world in terms other than spatial categories.
Space was still there; but it had lost its predominance. The mind was primarily concerned, not with measures and locations, but with being and meaning.
And along with indifference to space there went an even more complete indifference to time.
Aldous Huxley, The Doors of Perception 1963