The cover of Caligula shows an abstract horse bucking, and that is just what Caligula does to us. It knocks us off our high-horse by bringing us face-to-face with death. Only (and I do not choose that word lightly) a true understanding of death can put lives in perspective. Sure Caligula is a despot who could have the life of any of his subjects, but the fact-of-the-matter is that our lives can end at any second. Caligula teaches us not to take life for granted, which is something that is all to easily done in this era. This theme also exists in State of Seige. The other two plays, The Misunderstanding, and The Just Assasins are more subtle, but they also deal with idea that we take petty concerns and ideas too seriously, and fail to look and the big picture. I should also add that the language and passion of the plays are exceptional.