Hanuman assumed Panchamukhi or 5-faced kind to eliminate Ahiravana, a robust 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 approach to eliminate him was to extinguish 5 lamps burning https://directoryrec.com/listings834396/a-simple-key-for-beej-mantra-unveiled