This scene shows the tradition of the lottery, the community involved, and the sacrifice that they are making. In the story it states, "Although the villagers had forgotten the ritual and lost the original black box, they still remembered to use stones." This shows me that this is an old tradition, that has been going on long enough that some parts have been forgotten, while also talking about the community that has gathered to make a sacrifice.
In the story, the fact that something bad will happen is foreshadowed by the characters fear and nervousness concerning the lottery. In the story it states, "She watched while Mr. Graves came around from the side of the box, greeted Mr. Summers gravely and selected a slip of paper from the box." The grimness in the character's mood concerning the lottery foreshadows a terrible outcome is imminent.
The mood seems anxious and afraid in the story because the characters seem very scared and nervous about the lottery. In the story it states, "'It isn't fair, it isn't right,' Mrs. Hutchinson screamed, and then they were upon her." This shows me the fear of the people in the story and helps to create the mood by showing us how the characters in the story feel about the lottery.