What is an example of allegory in the play, The Zoo Story?

Jerry's story about his landlady's dog could be seen as an allegory for his own inability to relate to others. In the end, Jerry says that he and the dog harbor "sadness, suspicion and indifference" for each other, which is similar to the relationships that Jerry has with other people. Some critics have argued that The Zoo Story is an allegory for Christian redemption. Jerry, as the Christ-like figure, martyrs himself to demonstrate the need for and meaningfulness of communication. This Christian allegory viewpoint is also evident in some of the dialogue, such as when Jerry sighs and says "So be it!" just before impaling himself on the knife Peter is holding. This can be viewed as a reference to Jesus Christ's words as he dies on the cross: "Father, into your hands I commend my spirit." Although the manner in which Albee employs literary devices in The Zoo Story is subject to critical interpretation, all of the devices are readily apparent and are used to create a compelling drama.