Hanuman assumed Panchamukhi or 5-faced form to eliminate 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 one way to destroy him was to extinguish five lamps burning https://www.youtube.com/@Mahavidyabaglamukhi