metaphor is an important tool of worldmaking. a metaphor is an analogy. the Greek (μεταφορά) metaphorá means "transfer," to "carry over." a metaphor is more forceful (active) than an analogy, because metaphor asserts two things are alike, whereas analogy implies a difference.
miracles? myths? all metaphors. if we see it that way, it helps see the world as a construction.
for instance, imagine thoughts as autonomous agents, with posture and dignity (i.e, they understand their place and time). they are produced by our brains, but they have a sort of independent existence.
was zero discovered or invented?
why is this helpful? imagine a new violin. the sound of a new violin is pretty dull. it needs playing. the playing "cures" the wood. after years of playing, the inside (resonance box) becomes aware!