The following is a writing of our beloved QuanYin, I believe it is somthing all would be better off having read
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    Having a benevolent mind, we should express it through a mind of joy. This mind is of two kinds: a rejoicing mind and a mind of "forgive and forget." A rejoicing mind means that we are glad to witness meritorious and virtuous acts, however insignificant, performed by anyone, from the Buddhas and saints to all the various sentient beings. Also, whenever we see anyone receiving gain or merit, or prosperous, successful and at peace, we are happy as well, and rejoice with them.

    A "forgive and forget" mind means that even if sentient beings commit nefarious deeds, show ingratitude, hold us in contempt and denigrate us, are wicked, causing harm to others or to ourselves, we calmly forbear, gladly forgiving and forgetting their transgressions.

    This mind of joy and forbearance, if one dwells deeply on it, does not really exist, because there is in truth no mark of self, no mark of others, no mark of annoyance or harm. As stated in the Diamond Sutra:

    The Tathagata teaches likewise that the Perfection of Patience is not the Perfection of Patience; such is merely a name.

    The rejoicing mind can destroy the affliction of mean jealousy. The "forgive and forget" mind can put an end to hatred, resentment, and revenge. Because the mind of joy cannot manifest itself in the absence of Enlightenment, it is that very Bodhi Mind. Only when we practice with such a mind, can we be said to have "developed the Bodhi Mind."