In Nepal, the birthplace of Buddha, his birthday is celebrated on the full moon day of May. The festival is known by various names, Buddha Jayanti, Buddha Purnima, Vaishakh Purnima and Vesak. Purnima means full moon day in Sanskrit. Among the Newars of Nepal, especially from the Shakya clan of Newars, it is of great importance because they consider it as a continuation of the sage of the Śākyas- the clan that Lord Buddha's family belonged to. Thus, they celebrate the festival which is in their language known as Swānyā Punhi (स्वांया पुन्हि), the full moon day of flowers. The day marks not just the birth of Shakyamuni Gautam Buddha but also the day of his Enlightenment and Mahaparinirvana.
The event is celebrated by gentle and serene fervour, keeping in mind the very nature of Buddhism. People, especially women, go to common Viharas to observe a rather longer-than-usual, full-length Buddhist sutra, as something like a service. The usual dress is pure white. Non-vegetarian food is normally avoided. Kheer, a sweet rice porridge is commonly served to recall the story of Sujata, a maiden who, in Gautama Buddha's life, offered the Buddha a bowl of milk porridge after he had given up the path of asceticism following six years of extreme austerity. This event was one major link in his enlightenment.
It is said that the Buddha originally followed the way of asceticism to attain enlightenment sooner, as was thought by many at that time. He sat for a prolonged time with inadequate food and water, which caused his body to shrivel so as to be indistinguishable from the bark of the tree that he was sitting under. Seeing the weak Siddhartha Gautama, a girl named Sujata placed a bowl of milk in front of him as an offering. Realising that without food one can do nothing, the Buddha refrained from harming his own body.