The human heart is meant to love. A human being without love withers up. For us who believe in God that means love by God and of God. It also means loving relationships with other human beings. We can wound others and these relationships in at least three ways: a) outright injustice; b) injuring those we have loved and who have loved us; and c) drawing ourselves away in isolation.
The injuries can be of many kinds: cheating others of what is theirs by right; cheating others of our love; deeply hurting other's feelings. It is easy to be insensitive to the damage which our moral faults inflict on others. To come to the fullness of spiritual life we need to make amends. Making amends begins with letting go of any resentment in our own hearts. Then we can make overtures to others. If they respond, both they and we are freed from resentment. Then our amends will have included doing a favor for others.
Your wounds, Lord, are the wounds of all humankind. How many of them have I inflicted on others and on myself—on myself because I have inflicted them on others? You would heal me and them when I have the humility to make amends.