Memories arose irresponsibly and irrelevantly. All that he knew -- all his personal background, traditions, experiences, scholarship, dreams, ideas, and inspirations-welled up abruptly and simultaneously, with a dizzying speed and abundance which soon made him unable to keep track of any separate concept. The parade of all his mental contents became an avalanche, a cascade, a vortex. It was as horrible and vertiginous as his hypnotic flight through space when the crystal cube pulled him. Finally it sapped his consciousness and brought on fresh oblivion.