The tradition of these guhya or secretive Bhairava is an oral tradition that is continuing while in the Expert disciple custom. Their karmakand rituals and techniques are secret, they aren't penned down but only learnt and practiced in Expert disciple tradition. From the Kala Bhairav Ashtakam by Adi Shankracharya, Kala https://vashikaran30738.eedblog.com/29938934/the-basic-principles-of-bhairav