"Development. The young maiden is given in marriage. Good fortune. Perseverance furthers."
The tree (Wind/Wood) grows upon the Mountain. Unlike grass, the tree grows with an imperceptible slowness, deeply anchoring its roots into the rock. This is the principle of gradual progress and slow integration. A true marriage (or a true accomplishment) is not made in a flash of passion, but is constructed day by day, step by step, like the migratory flight of wild geese described in the lines of this hexagram.
"On the mountain is the wood: the image of development. Thus the noble man abides in dignity and virtue, in order to improve the customs."
One does not change the world or oneself through a sudden revolution, but through patient example and the accumulation of good habits.