Rummy Holi: A Vibrant Celebration of Tradition and Joy Known as the Festival of Colors, Holi is one of the most colorful and extensively observed holidays in India and among Indram slots 1-3 vs 2-4ian communities around the world. Ancient Hindu mythology is where it all began, & numerous legends explain its significance. The demon king Hiranyakashipu, who received a boon that made him all but unbeatable, is the subject of one of the most well-known tales. However, Hiranyakashipu was enraged by his son Prahlad's fervent devotion to Lord Vishnu.