The Mastiff is a feral dog but larger than ordinary dogs.
  It's good at fight ,and can help hunting .The Tibetan Mastiff is the best of Mastiff. As the story goes ,close ten dogs together in one courtyard and make them worry to each other till 9 of them is dead and the left one will be the best breed.After many many years, the Tibetan Mastiff come into being in this way.
  In legend ,the Living Buddha rides on Mastiff and the coming of them makes people free from aliment, makes the ice thawed and makes the ground resuscitated. Once the Mastiff was mentioned in Tibetan altiplano, all people admires it very much for its being rided by the Living Buddha who was dispatched from heaven. People regards it as a supernatural dog and the pastorals's protector.