Doctrine of Correspondences.
“Furthermore, there usually is a strong holistic trait in esotericism where the godhead is considered manifest in the natural world—a world interconnected by so-called correspondences. Man is seen as a microcosm of the macrocosm, the divine universe. Through increased knowledge of the individual self, it is often regarded as possible to achieve corresponding knowledge about nature, and thereby about God. However, the interpretation of what gnosis “actually is,” or what the correspondences “actually are,” differs considerably in the history of Western esotericism.”
–Henrik Bogdan, Western Esotericism and Rituals of Initiation, 2007, pg. 5.