Last year I wrote a little on the meaning of St. Patrick's Day:
Personal Reflections on St. Patrick's Day
This post will give you a glimpse of how, like Joseph, God can do the unthinkable and turn a bad situation to good. A young man who saves his enslavers and those who hate him. Joseph was sold into slavery by his jealous brothers and taken to Egypt. After he interpreted the dream of Pharaoh he was given a position of authority and saved the Egyptians from a seven years famine (by storing grain from the seven years of plenty preceding the famine), and also his brothers who came to Egypt to buy grain since their lands were experiencing the famine too. (Genesis 37, 39-47)
"Joseph said to his brothers, 'I am Joseph! Is my father still living?' But his brothers were not able to answer him, because they were terrified of at his presence....he said to them, 'I am your brother Joseph, the one you sold into Egypt! And now, do not be distressed and do not be angry with yourselves for selling me here, because it was to save lives that God sent me ahead of you.'" (Genesis 45:3-5, NIV)
St. Patrick was taken to Ireland as slave, after gaining his freedom and going home, he returned to Ireland to spread the gospel of salvation.
Imagine doing that. Who has wronged you? Imagine what it would look like for God to redeem that situation, and what he would have to work in your heart for you to do them a good turn. Now, start by praying about your own heart.