Elysian Fields
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The Elysian Fields were a place of paradise in the Underworld according to Greek mythology.

The Elysian Fields were a beautiful place, with "hills and valleys, groves and beaches, lakes and rivers". The ghosts in the Elysian Fields sang, danced, and feasted.

Katarina, after receiving help from Persephone and the First Doctor, reached the Elysian Fields as a reward for sacrificing her life for others. (PROSE: Katarina in the Underworld) Katarina had originally believed she was destined for the Asphodel Meadows along the other souls of the ordinary who were not capable of acts of greatness. (AUDIO: Daughter of the Gods)