We don't know all the answers. If we knew all the answers we'd be bored, wouldn't we? We keep looking, searching, trying to get more knowledge.
In poetic language, in which the sign as such takes on an autonomous value, this sound symbolism becomes an actual factor and creates a sort of accompaniment to the signified.
Things danced on the screen do not look the way they do on the stage. On the stage, dancing is three-dimensional, but a motion picture is two-dimensional.

