The Arousing (Thunder)
The First Stirring
The shock that rouses what lay dormant — or spends itself as fast as it arrives and only scatters.
Zhen reads from the bottom up as whole, broken, broken. A single yang line presses upward under two yin lines, which the tradition reads as thunder breaking out of the earth after the still of winter. Its attribute in the Shuogua is movement, and in the family of trigrams it is the eldest son, because the odd line, the yang one, stands in the first place. In the Later Heaven arrangement attributed to King Wen it holds the east, of which the Shuogua says that all things come forth there. Doubled, it forms hexagram 51 of the King Wen sequence, which carries the same name.
Light
Stands for the beginning of movement, the shock that rouses what has lain dormant, decisive energy, and the fear that clears the ground for new growth.
Shadow
Can indicate alarm and violence, motion without direction, an outburst that spends itself as fast as it arrives, or a shock that scatters rather than rouses.
