We carry the mightiest tool in our arsenal, the ability to forgive, so why don't we choose to use it before the grave?
Don't be so egotistical that you carry on personal feuds when their eventual death will show you really didn't mean it. I know of no more waste than what humans commit in silly grudges and childish irritations. We are so foolish in this regard it's a wonder God has not taken our brains and given them to the giraffes.
To refuse to forgive immediately is to drink poison hoping the other guy dies. We must break this insanity. Families are dividing and churches splitting over nonsense; sheer and meager nonsense. If we've been offended, let us get over it. Kill the multitude of their sins with your love. God called us to do it....equipped us to do it....and insists we do it.