Shunya — Svara

The one who achieved spiritual perfection, possessor of mystical abilities (siddhis).

It is a philosophic treatise which contains a description of metaphysical ideas and the way of thinking of Natha-sampradaya and also the highest ideal of yogis in this tradition. The majority of nathas and scientists consider guru Gorakshanath to be the author of the text, however, there is an opinion that it was written by Yogi Nityanath (well-known yogi-alchemist). Some respected yogis think that Nityanath is the name of Gorakshanath.

• Name of the one of spouses of Ganesha 
• Perfection achievement, strength 
• Supernatural abilities obtained through yogi sadhanas, tapas or naturally as a result of achievement of spiritual maturity. There are 8 classic siddhis (ashta-siddhis)
  

chakra located at the bottom of the abdomen is also called jala-mandala ("jala" - water, as it is associated with the element of water)

• the third of great utterances maha-vyāhṛti; 
• the celestial or heavenly world, also called svarloka,svarveśyā, svarbhānuḥ, svarga; 
• the space between the sun and the north star, dhruva, the region of planets and constellations;
• Sun, light, radiance;
• the divine, unmanifested, transcendent level of being;
• (cosmic) waters.