When inside the demon fort on his quest for Sita, he sets the whole area on fireplace and warns Ravana about an impending attack Except Sita is returned unharmed. The entire ritual should be executed at nighttime. Yantras energized during the nights of Maha Shivratri, Holi and Diwali are best https://www.youtube.com/@Mahavidyabaglamukhi