Indeed, in this Ocean Seal Diagram, the ontological doctrine of “dependent co-arising of the Dharma-Realm”, central to the Hwaŏm School, is depicted as if engraved on a rectangular seal (stamp), in the form of a poem in 30 stanzas with seven characters on each line (210 characters in sum), in a continuous maze-like line with 51 angles, suggesting that all phenomena, since they do not attach to self-nature but follow the conditions, are interconnected and unified in the dharma-nature; the fact that this line ends at the same place where it began (the Sino-Korean character “法 (Dharma)” in the middle) illustrates the cardinal Hwaŏm doctrine of interpenetration as well as the central Buddhist doctrine of the Middle Way. The whole and parts of the diagram interpenetrate harmoniously without any obstructions. Hence, the diagram serves as a comprehensive summary of all the teachings found in the Avataṃsaka Sūtra (Flower Garland Sutra).