Shivaloka- The Divine Cosmos
Shivaloka is also called Kāshika or Kashi- the place that exudes divine light. Created by Shakti, Shivaloka is the ultimate holy centre, the seat of salvation, shining over and above everything.
The fundamental character of Shivaloka is to give one an experience of extreme bliss or paramananda, so much so that the primordial lovers, the supremely blissful- Shiva and Shakti- made this holy centre their perpetual home.
– Shiva Purana, 1.25