豫。利建侯行师。
Thunder over Earth. Thunder rising from the ground. The energy that moves everyone at once.
The Lines
初六：鸣豫，凶。
Line 1 — Enthusiasm that expresses itself. Misfortune. Showing off. The announcement before the work.
六二：介于石，不终日，贞吉。
Line 2 — Firm as a rock. Not a whole day. Sees reality clearly before others. Acts early and correctly.
六三：盱豫，悔。迟有悔。
Line 3 — Enthusiasm that looks upward creates remorse. Looking to others for permission.
九四：由豫，大有得。勿疑，朋盍簪。
Line 4 — The source of enthusiasm. Great things are achieved. The real thing. People feel it and come.
六五：贞疾，恒不死。
Line 5 — Persistently ill but never dies. Something is draining the energy. But it survives because the source is real.
上六：冥豫，成有渝，无咎。
Line 6 — Deluded enthusiasm. If you recognize the delusion and correct course, no lasting damage.
Nuclear Hexagram
Nuclear Hexagram: 39 蹇 (Obstruction)
The energy to move comes from having been blocked.
Practical Application
If it comes from something real, great things follow.