Read it through once

2. I distinctly remember dreaming three several times, between intervals of two or more years, the same precise dream. It was not so much what is ordinarily called a dream; the single image, unconnected with all other images, of a youth who was educated at the same school with myself, presented itself in sleep. Even now, after the lapse of many years, I can never hear the name of this youth, without the three places where I dreamed of him presenting themselves distinctly to my mind.