The Surya is the source to which all the living beings owe their existence. All the deities derive their effulgence from Surya, who in turn derives its own radiance from Lord Mahadeva.Time is determined with the help of Surya’s movement. One can not even imagine the various units of time, like Kshana, muhurta day, night, fortnight, month, season etc. without the existence of Surya. The Sun, which illuminates the whole world is nothing but the medium through which the almighty Rudra manifests himself. The Sun sheds thousands of rays among which seven are prominent- Sushumna, Rishikesh, Vishwakarma, Vishwatyacha, Annadh, Sarvavasu and Swarah.