Apparently some non-Catholic readers were scandalized by my reference to praying to the saints, so I wanted to explain and clarify things.
Catholics believe in a concept, articulated in the Nicene Creed which has been the standard of the Christian faith since 325 A.D. (it came from the council that first defended Christ's divinity), called the Communion of Saints. The Communion of Saints says that there is a kind of unity or bond among all believers. "Fellowship" is the way some translations of Scripture express the concept.
One of the concepts behind the Communion of Saints is that the saints who have gone before us are around us and can hear our prayers. This is demonstrated by Hebrews 12:1 (which says we are surrounded by the saints who have gone before), Hebrews 12:23 (which says the saints are present when we worship), and Revelation 5:8, the elders in heaven carry the prayers of the saints (incense) to the throne room of God.
Even if we did not know from the testimony of Scripture that the saints are around us and carry our prayers to the throne room of God, it would make sense that we could ask for their prayers and they could intercede for us. When my mother died, I wanted very much to talk to her. I reasoned that I could pray to God and ask him to give her a message for me. He could then do so if He so willed. Then I said that I'll just talk to her and intend the same thing; i.e., instead of praying, "God, could you please tell my mom I love you," just tell God that when I say, "Mom, I love you", I mean "God, could you please ..." etc.
This is how I came to accept the communion of the saints.
Now, about the concept of "praying to" saints.