Correspondence — "as above, so below"

The second principle, and the oldest: the same pattern repeats at every scale, so the small can be read to know the great. This is the single strongest rhyme in the whole wing, because the Kabbalah is built from it — the four worlds each mirroring the others, the sephirot mapped onto the human body, Adam Kadmon as the shape of everything, and the rabbinic olam katan, the human being as a small world. "Know thyself" and "know the worlds" become one instruction in both systems.