I took all these details in as the mighty carnivore looked me over, yawned, and paced majestically toward me, frowning across at the distant herds li… - Keith Laumer

Are you all right? Mellia said.
"It's nothing a month in the intensive care unit wouldn't clear up."

The human mind is a pattern, nothing more. The first dim flicker of awareness in the evolving forebrain of Australopithecus carried that pattern in embryo; and down through all the ages, as the human neural engine increased in power and complexity, gained control of its environment in geometrically expanding increments, the pattern never varied.
Man clings to his self-orientation as the psychological center of the Universe. He can face any challenge within that framework, suffer any loss, endure any hardship—so long as the structure remains intact.
Without it he’s a mind adrift in a trackless infinity—lacking any scale against which to measure his aspirations, his losses, his victories.
Even when the light of his intellect shows him that the structure is itself a product of his brain; that infinity knows no scale, and eternity no duration—still he clings to his self-non-self concept, as a philosopher clings to a life he knows must end, to ideals he knows are ephemeral, to causes he knows will be forgotten.

I wanted to tell him that all lives are the same length when viewed from the foreshortened perspective of death, and that life, like music, requires no meaning but only a certain symmetry.