As a divinatory line, six at the first place of Gathering Together reads within the hexagram's overall concern with union and being collected, docile obedience leading on to satisfaction; the king approaches his temple, and firm correctness brings advantage. 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 a sincere desire for union that is interrupted partway, so that if he cries out, one grasp of the hand brings a smile, and there is no need for anxious fear, is the particular fortune assigned to this one stage of the situation, not to the hexagram as a whole.
The first line corresponds by classical convention with the fourth 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 lower position of the figure, the line marks the opening of the situation, before the trigram above it has any part in the reading, 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 first line of Gathering Together turns Kun into Zhen while the other trigram, Dui, stays as it is, which yields Gathering Together's changing partner, Following (King Wen 17), the hexagram this line is recorded as transforming into.