This is a metaphysical setting element. There are eight elements.
The Court of Light (Expansion, Creation, and Order) the three associated courts
Sun (fire and drive),
Sky (always in motion, always thinking),
Green (Plant/nature/soul - living)
The Court of Darkness (Contraction, Destruction, and the Random) the three associated courts
The Blue (Ocean and emotion),
The Keep (stone/metal),
Winter (frost, cold, stasis)
The associate courts are mostly their prime, but have segments of them in the opposition.