Saga Dawa festival, the fourth month in Tibetan lunar calendar is called Saga Dawa. It is the most auspicious month because Buddha Shakyamuni was born in this month, moreover, he attained enlightenment and passed into Nirvana in this month as well.
Buddhists believe that the result of positive action and negative action in this month are multiplied by a hundred thousand, so during this month almost all Tibetans give up killing, stealing and eating meat. Instead they make offering to the three jewels of the Buddha, Dharma, and Sangha. People also make special effort to release animals, give food to the beggars and make circumambulation around monasteries, temples and holy mountains to accumulate merit.
Parents advise their children not to harm any beings and to be kind to animals in general and specially during this month. In Lhasa we see many poor people begging during this month and more well off families give cash, food or drinks to them.