Nine occupies the beginning of the Gua, the inception of Opposition. In a time of estrangement and divergence, acting with firmness at the base understandably brings regret. Why does regret vanish?
Nine in the Fourth Place is above, also firm and yang, estranged with no partner; naturally, those of the same kind unite with each other.
Both are yang lines, both dwell at the base of their trigrams, and they occupy positions that would correspond; the two yang lines were originally not proper partners, but because they are in Opposition, they unite.
Above and below associate with each other, hence regret vanishes. In Opposition, all other lines have partners; when there is union, there is separation, but where there is original difference, how can there be separation?
Only the First and Fourth, though not formal partners, share the same virtue and join together, thus meeting each other. A horse is that by which one travels; yang moves upward. In Opposition, being alone without an associate means one cannot travel, which is losing one's horse.
Once the Fourth joins with him, he is able to travel, which is obtaining the horse again without chasing it. A 'hateful person' is someone contrary to oneself; 'seeing' means communicating with them.
In a time of Opposition, although those of like virtue associate, petty persons who are estranged and divergent are exceedingly numerous. If one cuts them off and rejects them, is that not almost making the entire world an enemy to the noble person?
Doing so loses the meaning of harmony and leads to misfortune and blame; how then could one transform the wicked and bring them into union? Therefore, one must see the hateful person, and then there is no blame.
The reason ancient sage kings could transform the treacherous into the virtuous and turn enemies into subjects was precisely because they did not cut them off.