As a divinatory line, six at the fourth 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 the king employing him to present offerings on Mount Qi, good fortune, no error, is the particular fortune assigned to this one stage of the situation, not to the hexagram as a whole.
The fourth line corresponds by classical convention with the first line, and the two do not correspond here, since both lines share the same character. Read together with the trigram it belongs to, Kun in the upper position of the figure, the line marks the first word of the upper trigram, close enough to the ruling fifth line to be shaped by it, 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 fourth line of Pushing Upward turns Kun into Zhen while the other trigram, Xun, stays as it is, which yields Pushing Upward's changing partner, Duration (King Wen 32), the hexagram this line is recorded as transforming into.