Sanervatar

Sanervatar is a goddess or a spirit of sauna and löyly from Kainuu. She is summoned to heal illnesses. In Finland, it was a custom to heal sick and wounded people in saunas. In a spell, she is asked to use löyly to heal the sick but to not let any löyly get into the wounds in case that would make the illness worse.

Auteretar is a similar character, who was described to be a daughter of air and a haltija of mist and haze by Elias Lönnrot. Auteretar was summoned to heal fever and inflammation. The name "Auteretar" originates from the word auer/autere, which means sun haze that floats in the air. In this form, she was mostly Lönnrot's invention. The name only appears in one poem from Northern Ostrobothnia related to the creation of löyly. In the same place appears the name Auterinen, a masculine name, described as "löyly son Auterinen".