Holika Dahan and Holi

For many traditions in Hinduism, Holi is a celebration of the killing of Holika to save Prahlada, a devotee of God Vishnu. In the days leading up to the festival, bonfires are prepared with an effigy of Holika, who tricked Prahlada into the fire, placed on the top of the pyre. Coloured pigments, food, drinks and festive seasonal foods such as gujiya, mathri, malpuas and other regional delicacies are also prepared. On the eve of Holi, typically at or after sunset, the pyre is lit, signifying Holika Dahan. The ritual symbolises the victory of good over evil. Holi — also known as the festival of spring, the festival of colours or the festival of love — is celebrated the next day to mark the arrival of spring, the end of winter and the blossoming of love.

https://www.thequint.com/lifestyle/holi-2020-date-significance-history-shubh-muhurat