Question: why durga puja is celebrated?
Answer: Durga Puja celebrates the victory of the goddess Durga over the demon king Mahishasura. It begins on the same day as Navratri, a nine-night festival celebrating the divine feminine. Durga Puja's first day is Mahalaya, which heralds the advent of the goddess. Celebrations and worship begin on Sasthi, the sixth day.