How does Susan Glaspell use imagery in The Verge?

The play is filled with symbolic images that help to convey the playwright's message. For example, in The Verge, the Edge Vine symbolizes Claire's desire to create something that is new and has no pattern. The play is also filled with visual and textual symbols that allude to Claire's sense of isolation and entrapment. There are also numerous symbols that refer to the patterns that Claire is trying to break, such as the patterns of frost on the greenhouse window and the broken pattern of the tower into which Claire retreats. There are also many symbolic elements that refer to twisting and breaking such as the twisting stems of the Edge Vine and the twisting spiral staircase that leads up to Claire's tower.