Dashain is the biggest festival in Nepal that is celebrated for 15 days in September or October. It honors the victory of Goddess Durga over the demon Mahishasura. Traditions include decorating a pot that is worshipped daily to represent Goddess Durga, collecting plants from the pot, animal sacrifices on the 8th day, and putting a red tika on foreheads on the 10th day to receive blessings from elders. The festival aims to bring peace, prosperity, and happiness to all people.