What does Mazu mean anyway?

I think I should explain the name of our boat, Mazu. Mazu came while we were researching for our trip to China. The Outbounds (out boat) are made in China. We had a great tour book and one of the towns near where we were going had a statue in honor of Mazu the goddess of the sea, protector of ships and sailors. There are many folk lore stories and festivals in her honor. We felt this would be a great name for our boat. You can "google" the name and get more information, it is a very interesting folklore.