Senior pets bring certain challenges into our lives, but the joys they provide far outweigh the worries. They are true, and they are faithful. They know us through and through. Their old eyes look right into our souls, and can see the love we have for them in our hearts. They listen to our troubles, and understand our very natures. They have grown not only to be eternally beside us, but to be a part of us. They have helped, in their twelve or fifteen or eighteen years of companionship, to make us who we are.