Gregory Bateson has a good essay on this topic, called "All Men are Grass" in Gaia: A Way of Knowing. He contrasts scientific logic with metaphoric logic. Scientific logic is syllogistic -- All men are mortal, Socrates is a man, therefore Socrates in mortal -- while metaphoric logic is associative -- Grass dies, men die, men are as grass. This is a logical fallacy, but feels right. (Apart from the sexist language (sorry), metaphoric language is full of these logical fallacies, but artistic truths, because in this logic things are linked by shape, colour, relations, intuitive insight, etc. The good part is seeing a world of intimate relationships; the bad part is exemplified by the following: White is the colour of purity, some people have pale complexions, therefore, they are pure. It is hard to control the power of metaphoric logic. Science has also been seen to be the enemy of metaphoric logic, because it denies relationships that metaphor sees as meaningful. This is the difference, for example, between astronomy and astrology.
yours, Peter T.