Hanuman assumed Panchamukhi or five-faced form to eliminate Ahiravana, a strong rakshasa black-magician and practitioner with the dim arts during the Ramayana war. Ahiravana, brother of Ravana, experienced taken Lord Rama and Lakshmana to netherworld as captive, and the only real way to kill him was to extinguish five lamps https://patrickv059hpt2.life3dblog.com/35595379/what-does-bhairav-mean