The mythological origin of Kaal Bhairav dates back on the one-story and that is the origin of numerous legends, from your Jyotirlinga to your four-headed Brahma and the institution in the supremacy of Shaivism. Lord Shiva has numerous varieties and avatars (manifestation of a deity in physical human body variety). https://directory-empire.com/listings13073190/indicators-on-kaal-bhairav-you-should-know