Culture and religion are supplementary to each other. Religion defines culture. According the religion and culture, every human being tries to behave and tries to follow religious customs. But sometimes culture and the will of man come into conflict. One wants to do something but one’s religion does not allow him or her to do so. Such situation of characters is depicted by a twentieth century famous religious writer, Graham Greene. He is known for his Catholic trilogy. The novel takes for research paper is one among his Catholic trilogy. The novel revolves round the religious sufferings of the priests depicted in the novel. Being a priest they could not follow their religion and they regret about it.