Bhairava, Bhairnath, Ravanath and Pralea

Shiva is called Bhairava in the Kashmiri Shiva tradition. Shakti, when it inwardizes, is Shiva. Ravanath means to absorb all existence back into pure awareness. This appears fades away into awareness itself. So this is Bhairana, just all of this is contained in the one letter, Bhairava. It's a crucial idea, transcendent, eminent God.