Hanuman assumed Panchamukhi or five-faced form to kill Ahiravana, a powerful rakshasa black-magician and practitioner on the darkish arts over the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the only real method to destroy him was to extinguish 5 lamps https://www.instagram.com/tantramantraaurvigyaan/