Nikini Full Moon Poya commemorates the First Buddhist Council at Rajagaha, where 500 Arahants preserved the Dhamma and Vinaya after the Buddha's Parinibbāna. It also marks the start of the Vassana rainy retreat, strengthening monastic discipline.

When is Nikini Full Moon Poya Day?

Nikini Full Moon Poya Day is celebrated on the full moon day in August.

The following is the list of Nikini Full Moon Poya Day from 2020 to 2049.

The History of Nikini Full Moon Poya Day?

After the Parinibbāna (passing away) of the Buddha in the 5th century BCE, the Sangha faced the challenge of preserving his teachings.

Three months later, under the leadership of Ven. Mahākassapa Thera, the First Buddhist Council was convened at Rajagaha (Rajgir, India). 500 Arahants (enlightened monks) gathered to recite and codify the Dhamma (teachings) and the Vinaya (disciplinary code).

Ven. Ananda, the Buddha's attendant, who had memorized most of the Buddha's discourses, recited the Suttas. Ven. Upali recited the Vinaya rules.

This effort ensured the authentic transmission of the Buddha's word across generations.

Ven. Ananda, beloved for his devotion and memory, had not attained Arahantship at the time of the Buddha's passing. On the night before the Council, he attained enlightenment, enabling him to participate. His recitation of the Buddha's sermons was crucial in preserving the Sutta Pitaka.

Nikini Poya also commemorates the formal establishment of the Vassana (rainy season retreat). During the rainy months, monks were required to remain in one monastery rather than travel. This practice encouraged meditation, teaching, and discipline, while laypeople supported the monks with food and essentials.

With the arrival of Buddhism in Sri Lanka (3rd century BCE, Arahat Mahinda), Nikini Poya became part of the Buddhist calendar.