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The left bottom clamps two cloudy trigrams to namely two positive trigrams to represent the fire, the winter, north, the wisdom.

Gua by Yin Yao (0), Yang Yao (1), with a binary code.

The top right-hand corner ridge namely four cloudy trigrams clamp a positive trigram to represent the water, the fall, south, the ritual;

The right bottom Yin principle namely six cloudy trigrams represent, the summer, west, righteousness;