In a post about hyperbole, Joe Carter had this to say "Metaphors work best when they are fresh, not when they are loud."
Carter and Wittgenstein must be ganging up on me, because just yesterday I took note of Wittgenstein writing "A good simile refreshes the intellect."
Let's treat simile as a sub-species of metaphor (which it is); I find the metaphor in these pronouncements on metaphor fascinating. I get the sense of metaphor as food and drink, both "fresh" and "refreshing."
Yes, that's it exactly. Metaphor is the food and drink of the mind.