Protecting

2014-04-14 10.48.06A mote protects home, which is on an island.  There is only one way to arrive at the island, by boat. He is the bull who stands at the entry to the island. Taking care of and protecting his family is this man’s top priority! He realizes that he is not alone, in the waters that protect his family, there is another guardian.  Who is that?  How does that knowledge help him?