Tibetan May 15 is Lin card section. Tibetan language called "hidden forest ji", meaning world incense day, world a happy day. Is said to be a time to honor master padmasambhava had laid hidden in monkey may all evil. Love nature and good at Tibetan people on this day in ceremonial dress, with barley wine and tea, and various kinds of delicious food to tree-lined with Lin card, tent, ate and drink and dance, enjoy the nature. Also invite each other between the tents, and folk artists to this flyby, the festival often continued for a month.