Celestials are creatures from The Outer Planes. The category includes everything that originates in The Outer Planes, made of its conceptual energy, from planar gods to simple creatures to Dracar's constructs.

Relations of other Races
Many celestials live their lives within their home plane, never venturing into any of the other 14 Outer Planes, let alone into The Inner Planes. They value their strength, which can only be replenished while they reside in their home plane, and are loathe to expend energies on other planar matters.

Lore
Celestials were the first proper creature type to come into existence, although not even Knack recalls those early days clearly. Myths around celestials are as vast and varied as celestials are themselves.