Hanuman assumed Panchamukhi or five-faced form to destroy Ahiravana, a robust rakshasa black-magician and practitioner of the darkish arts throughout the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the only real method to eliminate him was to extinguish 5 lamps https://zanderzpfuk.blogtov.com/17279793/about-mantra