the implication is that if mood is the character of the place then those sentences that set mood are advancing character.
Some authors rarely describe a place objectively. We see a space through the eyes of the characters - and in doing so, we learn about our characters as we learn about the space they inhabit.
Some authors rarely describe a place objectively. We see a space through the eyes of the characters - and in doing so, we learn about our characters as we learn about the space they inhabit.