The correct answer C) to suggest that God has intervened to improve Griselda’s life.
The purpose of the use of the underline term (celestial) in the excerpt is to suggest that God has intervened to improve Griselda’s life.
The excerpt says that “What more needs to be said, except that celestial spirits may descend even into the houses…”
Celestial spirits is another term to identify deities, in this case, God, the Almighty that lives in the heavens. The excerpt means that hope one day God could come from heaven to help Griselda’s life.