In The same legend linked to the birth of Ayyappa, the demon Surpanaka earns the facility to turn anybody into ashes by his austerities. It's considered the chakra of pure consciousness, and so, the Crown Chakra Yantra (or Sahasrara Chakra Yantra) represents the Strength of the best volume of consciousness https://www.youtube.com/@Mahavidyabaglamukhi