The tradition of such guhya or secretive Bhairava is an oral custom that is continuing while in the Expert disciple tradition. Their karmakand rituals and techniques are key, they don't seem to be penned down but only learnt and practiced in guru disciple tradition. Bhairava is also referred to as https://tituslhbvn.blogvivi.com/30429043/bhairav-no-further-a-mystery