The excess of his sensibilities may preclude his mind. His sanity is an unknown room: a known room is always smaller than an unknown - Djuna Barnes

His sanity is an unknown room: a known room is always smaller than an unknown.

the ballerina on perfected toe
Spins to the axis of a fortitude
That is the sum of all her yesterdays.

"Ah, mighty uncertainty!" said the doctor. "Have you thought of all the doors that have shut at night and opened again? Of women who have looked about with lamps, like you, and who have scurried on fast feet? Like a thousand mice they go this way and that, now fast, now slow, some halting behind doors, some trying to find the stairs, all approaching or leaving their misplaced mouse-meat that lies in some cranny, on some couch, down on some floor, behind some cupboard; and all the windows, great and small, from which love and fear have peered, shining and in tears. Put those windows end to end and it would be a casement that would reach around the world; and put those thousand eyes into one eye and you would have the night combed with the great blind searchlight of the heart."

I talk too much because I have been made so miserable by what you are keeping hushed.