As a divinatory line, six at the sixth place of The Well reads within the hexagram's overall concern with a town may be changed while the fashion of its wells is never changed, the well neither decreasing nor increasing, and all who come and go draw from it and are benefited. The line occupies a place proper to its own nature in the classical doctrine that odd places favour a firm, yang line and even places favour a yielding, yin line. Its own text, that waters drawn from the well without being covered over, a nature of sincerity that brings great good fortune, is the particular fortune assigned to this one stage of the situation, not to the hexagram as a whole.
The sixth line corresponds by classical convention with the third line, and the two correspond here, since one line is yin and the other yang. Read together with the trigram it belongs to, Kan in the upper position of the figure, the line marks the far edge of the hexagram, past the point the ruling fifth line governs, one stage in the six stage movement the hexagram traces from its first line to its last.
A change at this line, from yin to its opposite, is the mechanism the tradition uses to move from one hexagram to another. Flipping the sixth line of The Well turns Kan into Xun while the other trigram, Xun, stays as it is, which yields The Well's changing partner, The Gentle (King Wen 57), the hexagram this line is recorded as transforming into.