The fifteen days of Losar, the Tibetan New Year, are rooted in an important story about Buddha Shakyamuni and the Great Miracle he performed at Shravasti.
According to the Divyavadana and other Buddhist texts, a fully awakened Buddha must perform a Mahapratiharya, or Great Miracle, before entering final nirvana (mahaparinirvana). Buddha Shakyamuni fulfilled this in an extraordinary way. However, different Buddhist traditions tell the story a little differently and place it at different times of year, depending on their lunar calendars.
In the Pali tradition, the Great Miracle is known as the Twin Miracle (Yamaka Patihariya). Near the gates of Shravasti, at the foot of a mango tree, the Buddha displayed a powerful sign of realization by emitting fire and water from his body at the same time. This event is said to have taken place on the full moon of Asalha (June or July), just before the annual rains retreat.
In many Mahayana sources, including the Sutra of the Wise and the Foolish, the Great Miracle is described differently. Here, the main miracle is the Miracle of Multiplication. The Buddha multiplied his form so that countless manifestations filled the sky, inspiring deep faith in those who saw them. These accounts describe fifteen days of miracles at Shravasti, beginning on the first days of the lunar New Year.
In these traditions, the Twin Miracle is sometimes described as an earlier display, while the Miracle of Multiplication is seen as the central event. It traditionally occurs on the eighth day, but all fifteen days are considered sacred. Together, they form a period of remembering and honoring the Buddha’s enlightened activity.
Over time, especially in Tibetan Buddhism, the fifteenth day became the main day of celebration. This day is known as Chötrul Düchen, the Festival of Miracles. It marks the completion of the fifteen days and commemorates the Buddha’s powerful demonstration of wisdom and compassion at Shravasti.
Because of this history, Tibetan tradition dedicates the first fifteen days of the New Year—from Losar to Chötrul Düchen—to spiritual practice and the accumulation of merit. It is believed that positive actions performed during this time are greatly multiplied. In this way, the fifteen days of Losar reflect the deeper meaning of the Great Miracle: not a display of magic, but the natural expression of the vast merit and realization the Buddha developed over countless lifetimes.
