Thunder in the middle of the lake:
The image of FOLLOWING.
Thus the superior man at nightfall
Goes indoors for rest and recuperation.
In the autumn electricity withdraws into the earth again and rests. Here it is the thunder in the middle of the lake that serves as the image—thunder in its winter rest, not thunder in motion. The idea of following in the sense of adaptation to the demands of the time grows out of this image. Thunder in the middle of the lake indicates times of darkness and rest. Similarly, a superior man, after being tirelessly active all day, allows himself rest and recuperation at night. No situation can become favorable until one is able to adapt to it and does not wear himself out with mistaken resistance.
Translator of this version of the I Ching is Richard Wilhelm. If you missed any posts in this series, please utilize the I Ching label below.