Bhairava is One with the Transcendant Siva and Nataraja

Bhairava or Rudra, Siva as yogi,

Image of Satguru Sivaya Subramuniyaswami
Sadhana is performing the same discipline over and over and over again. Just as we methodically exercise the physical body to build up its muscles, we perform spiritual disciplines over and over again to strengthen our spiritual, inner bodies.
—Gurudeva