some-formed uttering triangles, really

In the process of speaking, the average human utters 6 metaphors a minute.

Metaphors are synaesthetic re-combines of ideas if you think about it. Like triangles -- giving a thing a name that belongs to another thing to produce a more vivid understanding of both things, and itself.

I think metaphors are also rooted in misrecognition, as when you see shapes and things in shadows or on rockfaces, or mis-hear words, or recall things from things that aren't there: invented nostalgia from nonexistent memories.