As a divinatory line, six at the third place of Limitation reads within the hexagram's overall concern with progress and attainment, but if the regulations it sets are severe and difficult, they cannot be maintained for long. The line occupies a place that does not match 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 one who acknowledges no limitation will have cause to lament, though the fault will lie with himself alone, is the particular fortune assigned to this one stage of the situation, not to the hexagram as a whole.
The third line corresponds by classical convention with the sixth line, and the two do not correspond here, since both lines share the same character. Read together with the trigram it belongs to, Dui in the lower position of the figure, the line marks the hinge between the two trigrams, the last word the lower trigram gets before the upper trigram takes over, 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 third line of Limitation turns Dui into Qian while the other trigram, Kan, stays as it is, which yields Limitation's changing partner, Waiting (King Wen 5), the hexagram this line is recorded as transforming into.