As per Jainism, the importance of forgiveness can never be overemphasized, and Paryushan, the holiest period in Jain religion, is a festival of repentance, soul-searching, atonement and most importantly, forgiveness. So, know about three wonderful Jain sutras that seek forgiveness from all and forgive all.
To keep ignited a burning desire to avenge some past folly committed by someone, is harmful for you alone. At any point point of time, it is better to adopt compassion over hatred. Following is a poem by Manas Madrecha, that narrates how logical it is to seek Forgiveness from others and Forgive others on your part too.