The earthquake represents the fluctuation of a person's inner emotions, the disintegration of old ideas and the establishment of new ones (sexual desire).
Homecoming, on behalf of their own miss, miss, always thinking about something (sexual desire).
Going down the stairs represents your submission, submission and submission to sexual desire.
Students' playing chess represents the struggle between their own reason and sexual desire and guilt.
Students put each other to death or win, indicating that sexual desire has defeated reason.