Do I have to find a particular kind of meaning after I forgive?
There is no one meaning for you to find once you have forgiven. Some people find meaning in the forgiveness process itself, as they now highly value it. Some people find meaning in the revelation about how many people are walking around with emotional wounds. Others find meaning as they discover what love in its service-to-others sense means. So, try to find the meaning that seems to fit today with your particular forgiveness journey.
For additional information, see Why Forgive?