Yes – if it makes sense and fulfills a story need.
No – if it’s just to throw in backstory you can’t let go.
Yes – if blended in coherently.
No – if it’s just stuck there to show the character’s emotional dreaming and the emotion is as clear as mud.
Yes – if part of the character’s make up and is used to give critical information and discovery.
No – if you want it to act like a scene change marker.
Yes – if as your editor I’ve pushed for a no and you won’t budge.
No – if as your editor I’ve pushed for a no and you agreed.
Editor versus author, who wins?
Teamwork doesn’t work that way.