Buddha Purnima, also known as Vesak, is the most sacred day in the Buddhist calendar, commemorating the birth, enlightenment, and Mahaparinirvana of Lord Gautama Buddha. Celebrated on the full moon day of the Vaisakha month, devotees mark the occasion by visiting Viharas, reciting suttas, practicing meditation, offering charity, and reflecting on the Buddha’s timeless teachings of non-violence, compassion, and ultimate liberation.