" The acquired knowledge, which includes acquired thinking or, in Freudian terms, the "ego", opposes the more animal energy-impulses when they try to take control of the skeletal muscles and thus of action. That these libidinal impulses also flow through the chambers of memory in their effort to control human action, kindling the fire of dream fantasies in them — that in the work of the artist they are purified by a stream of knowledge until they finally merge with it — therefore represents a reconciliation between originally antagonistic tendencies of the personality. "

― Norbert Elias , Mozart: Portrait of a Genius