24.1.2 (24 > 7)
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 earth

Lower trigram: The thunder The water


Ruler
The starting situation
Correction
The direction where the ruler is going to bend