In today's Gospel reading from Luke 15, we learn from Jesus' parables that there will be great joy in heaven and rejoicing among the angels of God over one sinner who repents. This is important for us to know. It shows how much God and the whole heaven love us and are rooting for us. Wouldn't it be great that we repent and aim to become saints? If we do not and continue to sin, imagine how much sorrow we shall cause in heaven!