Blake illustrates what Zhou diviners called Jie (節), Limitation—Water above Lake, the trigram Kan over Dui. Water contained within defined banks, lake shores establishing natural boundaries. The character 節 depicts bamboo joints, regular divisions that provide structure through measured intervals. Newton's obsessive measuring represents limitation turned destructive—boundaries so rigid they blind rather than preserve. Yet the hexagram teaches that some limitations make things possible. A vessel contains water by limiting its spread, musical scales organize sound through regulated intervals, bamboo's segmented structure creates strength. Ancient practitioners saw this configuration when questions concerned resource management, necessary restraint, the acceptance of sustainable boundaries. Blake depicted Isaac Newton hunched on a rock at the sea floor, obsessively measuring geometric diagrams with a compass. The scientist ignores the spiritual cosmos above, limiting his vision to mathematical rationality. Limitation (Jie) describes necessary boundaries—here Blake critiques self-imposed constraints that blind one to larger truths. The Judgment addresses Newton's self-imposed constraints: "Limitation. Success. Galling limitation must not be persevered in." Blake critiques excessive restriction—Newton's self-limitation has become galling, cutting him off from imaginative and spiritual understanding. Zhou Dynasty texts describe limitation as necessary but requiring limitation itself. Banks that make a river useful can also choke its flow. In divination, Jie appeared when circumstances required clear boundaries, when waste demanded prevention through measured response. The Image Text offers guidance Blake might endorse: "Water over lake: the image of Limitation. Thus the superior one creates number and measure, and examines the nature of virtue and correct conduct." The hexagram distinguishes between limitation that preserves and restriction that imprisons. In the I-Ching sequence, Jie follows Dispersion—after scattering comes the need to re-establish structure, but Blake warns that structure serving only itself becomes a prison deeper than any ocean.