Hanuman assumed Panchamukhi or five-faced type to destroy Ahiravana, a robust rakshasa black-magician and practitioner on the dim arts in the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the only strategy to eliminate him was to extinguish five lamps burning https://www.youtube.com/@Mahavidyabaglamukhi