When one becomes for an instant one's former self, that is to say different from what one has been for some time past, one's sensibility, being no longer dulled by habit, receives from the slightest stimulus vivid impressions which make everything that has preceded them fade into insignificance, impressions to which, because of their intensity, we attach ourselves with the momentary enthusiasm of a drunkard.

Remembrance of things Past Cities of the Plain The Captive The Sweet Cheat Gone (ed. 1932)