Final answer:
The subject of this question is English, and it pertains to a specific scene in a narrative or play where the guests congratulate themselves. The provided excerpt gives details about the setting and the characters' actions.
Step-by-step explanation:
The subject of this question is English. The question is referring to a specific scene in a narrative or play where all the guests emerge into the hall and congratulate themselves. This scene is likely part of a larger story or event that is being described. The excerpt provides some details about the setting and the actions of the characters, which helps to create a visual image for the reader.