The first line of Development (King Wen 53) is drawn as yin, the numeral six in the old divination manuals. James Legge's translation renders the line as wild geese gradually approaching the shore, a young officer in danger and spoken against, yet no error. The image sits inside a hexagram whose judgment as a whole concerns the marriage of a young lady, and the good fortune attending it, advantage in being firm and correct, and this line supplies one stage of that larger reading rather than a complete statement on its own.
Structurally the line stands at the lowest place of the lower trigram Gen, mountain in Legge's readings of the eight trigrams, while the upper trigram of the hexagram is Xun, wind in the same traditional set of images. The Great Symbolism of the hexagram reads a tree above a mountain; the superior man attains to virtue that endures and makes the ways of the people good, and the first line takes its place inside that combined picture of Gen below and Xun above.
Read on its own the line neither opens nor closes the hexagram's argument. It marks the point where Gen is either forming (in the lower trigram) or completing itself (in the upper), and later interpreters treat its image, The Wild Geese Gradually Approaching the Shore, as the concrete case through which the hexagram's abstract judgment becomes visible in a single situation rather than a general principle.