Hanuman assumed Panchamukhi or 5-faced type to destroy Ahiravana, a strong rakshasa black-magician and practitioner with the dim arts throughout 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://baglamukhi70370.blogrelation.com/43139499/the-fact-about-krishna-that-no-one-is-suggesting