Hatred devours and destroys all forms of goodness. It visits poisonous injury on everyone. If one possesses hatefulness one loses even one's own happiness and benefit. Moreover, all buddhas and bodhisattvas take the great compassion as their foundation. They come forth from compassion.
Hatred is the poison which destroys compassion.
In that connection it is especially inappropriate. It is for these reasons that one should cultivate patience. On account of his possessing these meritorious qualities one should refrain from being hateful. Additionally, if this person curses me or strikes me he is helping to refine me. This is analogous to a goldsmith's refining of gold where the impurities are gotten rid of with fire so that only true gold remains.