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