The memory of Agnes pointing upward becomes a symbol, to both David and his readers, of the powerful moral that Agnes has on him. By inspiring David to ceaselessly better himself, Agnes is not only responsible for his worldly successes, but also, ultimately, for his hopes of going to heaven. The image, in other words, reflects the belief that the ideal Victorian woman was not simply a companion to her husband in practical matters, but also a guide in spiritual and moral ones.