The Second line, being yang, dwells in the center of the lower trigram; the Fifth line, being yang, dwells in the center of the upper trigram. Both occupy the center with yang firmness, both are restrained by yin, and both wish to return upward.
Although the Fifth is above the Fourth, it is equally restrained by it; thus they share the same aspiration. Those in shared hardship sympathize with one another; the Second and Fifth share the same will, hence they are drawn together in returning.
When the two yang lines advance side by side, the yin cannot prevail over them, and they can realize their return; therefore it brings good fortune. One may ask: 'If it realizes its return, does it then escape restraint?'
The reply is: All line statements mean 'if one acts like this, then such will be the outcome.' If it had already occurred, the time would have already changed—what instruction or warning would remain?
The Fifth belongs to the Xun trigram; Xun tames Qian, yet why does the Fifth instead draw together with the Second? The reply is: Speaking of the two trigrams, Xun tames Qian; speaking of the entire hexagram, a single yin tames five yang lines.
In the Changes, meanings are drawn according to the times in precisely this manner.