What does it mean, 'inner' and 'outer' trigram (popup)
Thunder below Water: Thunder wakes up everything, makes seeds germinate, causes sudden changes. Water adapts to obstacles, shapes things in a way which fits in their surroundings or space. Together they make new life possible, a start from scratch.
Ideogram of the hexagram name: a sprout which breaks through the surface of the earth. Meaning: difficult, stingy, sleepy, regret, blocked; full, thick, aggregation, accumulation, guarding, stationed, defense zone, garrison, ancient military establishment, village. Itinerant troops often had to settle temporarily and grow their own food, which is an important one of Zhūn's meanings.
The 'Great Image' says: Clouds and Thunder: sprouting. A noble one lays out the basic pattern. ("uses the warp threads")
Hex.3 is the contrast of 50, where everything is organized or supposed to be. In hex.3 everything has still to find or maybe even imagine its shape, you have to start something and build it up, find its form.
Making something grow from out a tiny beginning is always a struggle. Preparing the field, nurturing the seedling, finding helpers. Like Thunder wakes up the seeds, you have to wake up your idea, using relentless movement, like Water, to shape it. Water doesn't follow a path, it creates one by entering any opening, using every slope to add to its speed and depth, reaching its goal without knowing where it will be.