The battle is between the Spiritual nature and the Worldly pleasures.

Spiritual ways are in opposition to many worldly ways.
To donate in the world has no "advantage" to it, there is no "worldly" reason to donate.
Donating is liberating.

To forgive someone may seem a weak thing to do in the wordly ways. Try to do it, it can be very tough to do.
Forgiving is freeing

The "world" would have us miserly and bitter with unforgiveness.