On this last Sunday of Advent, as the solemn celebration of Christ’s birth approaches, the Church reminds us of that holy day nine months earlier when Jesus was conceived in his Mother’s womb. There are two great mysteries connected with that day. The first is the mystery of God becoming man – the Incarnation. God has loved us so much that he became one of us, so that he could save us from sin and the meaninglessness that sin brings, and show us the way to a meaningful life, now and forever. The second mystery is that God didn’t – and doesn’t – work out that plan of salvation for us all by himself. Instead, he asks for our cooperation.