What is the importance of the snowball fight in the novel, Within These Wicked Walls?

The snowball fight is a symbol of the need to have some fun even in the midst of terrible and terrifying situations. Andromeda, Magnus, and Saba wind up in a snowball fight in the snowy hall. Though the hall is one of the Manifestations, this one is relatively harmless and the three have a wonderful time playing there one day.