As a divinatory line, six at the sixth place of Pushing Upward reads within the hexagram's overall concern with great progress and success, seeking to meet the great man need cause no anxiety, advance to the south brings good fortune. 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 pushing upward blindly even at the summit, advantage in being unceasingly firm and correct, though the position cannot be maintained for long, 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, Kun 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 Pushing Upward turns Kun into Gen while the other trigram, Xun, stays as it is, which yields Pushing Upward's changing partner, Work on the Decayed (King Wen 18), the hexagram this line is recorded as transforming into.