Kama's theme in FGO, by Keita Haga. It's actually listed as "karma ataraxia" ingame.
"Kama", in ancient literature, is a concept that broadly refers to any desire, wish, passion, pleasure, or enjoyment of art and beauty with or without sexual connotations; and "Ataraxia" is a philosophical term to describe a lucid state of robust equanimity characterized by ongoing freedom from distress and worry.
