Bak Full Moon Poya Day is on the Full moon day of April. This is noteworthy, as Bak is a month of national importance as well. This holy day celebrates the second visit of the Buddha to Sri Lanka, which took place in the fifth year of his supreme enlightenment in order to reconcile two local chiefs, Mahodara and Chulodara, uncle and nephew, who had fallen into disagreement and were threatening hostility over a throne beset with jewels. The theme of the day is Right Understanding (Samma Ditthi).
Navam full moon has special significance for the Buddhists in Sri Lanka and in the world. The two very significant incidents that took place on the Navam Pura Pasalosvaka Poya Day were the first ever Buddhist congregation and the appointment of two chief disciples of Gautama Buddha as Aggasavakes namely Sariputta and Moggallana. In the eve of the first Navam Full Moon Poya day after the Enlightenment of Gauthama Buddha, there were more than One thousand two hundred and fifty disciples in the Order of Maha Sangha.
<p><span>Uduwap Poya day is considered by Sri Lankan Buddhists to be of special significance because emperor Dharmasoka’s daughter, Theri Sanghamitta brought with her and her retinue a Bo-Sapling to Anuradhapura, from Buddha Gaya.</span><br />
<span>It was on this day that the Bo-Sapling was ceremoniously planted at the Mahamegha Udyanaya and also the Sri Lanka Bhikkuni Sasana was established when Queen Anula (reigned 47 BC – 42 BC) became a Bhikkuni.</span><br />
<p><strong>The il Poya Day</strong></p>
<p>The il Poya falls on November full moon. It is the last Poya of the “Wassana” Rainy Season and a number of important incidents occurred on this day. Therefore, it is a significant day in the Buddhist calender.</p>
Significance of Vap Poya (full moon Poya day in October) From time immemorial, Vap is known as the period of sowing. The major cultivation season is known as „Maha‟ which begins with the inter monsoonal rain around the month of October.
The rainy season commenced three months ago. It is known as „Vassana Kalo‟ and it comes to an end with the Vap Poya and Katina season ushers in the Buddhist Calendar with the month of Vap, which is popularly known as “Cheevara Masaya”.