Generosity brings happiness at every stage of its expression. We experience joy in forming the intention to be generous. We experience joy in the actual act of giving something. And we experience joy in remembering the fact that we have given.
If our animosities are born out of fear, then confident generosity is born out of hope. One of the central lessons I have learned after a half century of working in the developing world is that the replacement of fear by hope is probably the single most powerful trampoline of progress.