17
The trigrams
The trigrams are combinations of three yin and yang lines. The three bottom lines of the hexagram form the lower trigram and represent the inner situation. The three top lines form the upper trigram and represent the outer situation.
Upper trigram: The lake

Lower trigram: The thunder

The complementary hexagram: 18
The companion hexagram that makes the situation whole.
18 - Disorder
One needs to abandon their affairs and make oneself available to patiently soften one's most embarrassing flaws, so that one can inspire confidence and be engaged by those who can help them.
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