Why forgive?

Just as God has forgiven our trespasses, so must we forgive our brethren's trespasses. |
The grain of sand which so hurts (wounds) us , when given to God, Jesus turns into our 'pearl' of great price. He can turn the bad into good. |
Practically, if you keep a grudge, you are only hurting yourself. |
And life is not mainly determined by external circumstances, but by our reactions to them. So always choose the good.