Consulting the Book of Changes…
Hexagram 42 of 64 · King Wen sequence
Increase. It furthers one to undertake something. It furthers one to cross the great water. Wind and thunder: the image of Increase.
Open above, joyful — the pooled water that reflects the sky. Pleasure, exchange, the spoken word.
Shock and movement from below — the impulse that breaks open winter and starts a new cycle.
Wind above, thunder below. Wind and thunder: the image of Increase. Thus the superior person, if they see good, imitates it; if they have faults, they rid themselves of them.
Hexagram 42 — Increase — names a moment in which thunder sits beneath lake. What the I-Ching gives you here is not a prediction but a posture. It says: stand inside this configuration of forces, do not flinch from it, and act in the spirit of the image. The classical Judgment tells you what is at stake; the Image tells you what to do about it.
Apply it as a frame for the next concrete decision in front of you. If the question you brought is about action, ask whether the gesture you are considering matches the spirit of increase. If it is about a relationship, look at the trigrams — Thunder beneath Lake — and ask which of those two energies you have been overplaying, and which you have been ignoring. The oracle is rarely cryptic on close reading; it is precise about what kind of person this moment is asking you to be.
Treat any changing lines as the seam where the situation is opening into its next phase. The transformed hexagram is not what will happen — it is what this one is in the process of becoming, and the changing lines are the hinges. Read them last. Read them slowly.
If a single line changes from yin to yang or yang to yin, the hexagram becomes one of these six.