This is the story behing the festival of holi -King Hirnayakashipu wanted to be worshiped by everyone. The king's own son Prahlada , a devotee of Lord Vishnu, refused.
Hiranyakashipu, angered by his son’s defiance, ordered his sister Holika to destrtoy Prahlada. Holika possessed the power to walk through fire unharmed. She picked up the child and walked into a fire with him. Prahlada, however, chanted the many names of Lord Vishnu and was saved from the fire. Holika perished because she did not know that her powers were only effective if she entered the fire alone.
To this day there is a practice of creating a pyre the night before Holi and setting it alight as a symbolic burning of the demoness Holika. This is known as Holika Dahan