Hanuman assumed Panchamukhi or five-confronted kind to eliminate Ahiravana, a strong rakshasa black-magician and practitioner from the dark arts throughout the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the one way to kill him was to extinguish 5 lamps burning https://vashikarantotke18557.blogtov.com/17252694/hanuman-an-overview