The Vijñāna Bhairava Tantra (sometimes spelled in a Hindicised way as Vigyan Bhairav Tantra) is a key text of the Trika school of Kashmir Shaivism. Cast as a discourse between the god Shiva and his consort Devi or Shakti, it briefly presents 112 meditation methods or centering techniques (dharana). These include several variants of breath awareness, concentration on various centers in the body, non-dual awareness, chanting, imagination and visualization and contemplation through each of the senses. A prerequisite to success in any of the 112 practices is a clear understanding of which method is most suitable to the practitioner.