The nature of drama is conflict; characters in a scene will want, expect, or demand different things, and they will clash. The skilled dramatist uses these differing expectations and needs to create tension and climaxes. He or she will control the rhythm of the buildup, both in individual scenes and in the drama as a whole, to create the right dramatic effect. In this play, most of the scenes build to an explosion of anger or frustration between either husband and wife, mother and son, or father and son.