Graham Greene is Britain's "leading literary expert"1 in the contemporary world. The heart of the matter is one of Greene's most important Catholic novels. Together with Brighton Rock and The Power and the Glory, it belongs to the group of his novels popularly called the "Catholic trilogy". Belonging to the "fallen" world in Greene's novels produces tensions and desires that can only cease with the passage of time. In other words, he sculpts the Cross: «The Cross is not only a unique event in time, but also something inherent in human life and which must be experienced by every individual, who must climb his own Calvary and die in his isolation. Cross so that he has the possibility of returning to God".2 The Heart of Matter, like The Power and the Glory, has a title based on the main theme it deals with. Like Greene's other Catholic novels, it deals with themes of God and His mercy, and issues of sin, damnation, holiness, and salvation. It also presents a conflict between the love of woman and the love of God. It brings out the infinity of God's mercy and the impenetrability of the mechanisms of the human heart as well as those of God. On the other hand, we can say that Greene emphasizes the mysteriousness of the functioning of the human heart and also the mystery of God. The title phrase takes place after the beginning of the second part of the novel, when Scobie, momentarily alone at night and looking at the stars, asks the question: "If if they knew the facts, they should feel pity even for the planets? What if we get to what they call the crux of the matter?"3 Therefore, the title of the novel is significant and appropriate, since there is only one central theme - the crux of the matter - that is, compasses. . middle of the sheet ......gan Paul, 1962),p.185.7. Kenneth Allott and Miriam Farris, The Art of Graham Greene (London: Hamish Hamilton, 1951), p. 217.8. JP Kulshrestha, Graham Greene: The Novelists, p. 105.9. Ibid., p.106.10. Laurence Lerner, “Graham Greene,” The Critical Quarterly (Fall, 1963) p. 222.11. JP Kulshrestha, Graham Greene: The Novelists, p. 109.12. Marie-Beatrice Mesnet, Graham Greene and the Heart of the Matter (London: The Cresset Press, 1954), p. 89.13. F. N. Lees, "Graham Greene: A Comment," Scrutiny, XIX (October 1952) p. 37.14. Arnold Kettle, An Introduction to the English Novel, vol. II (London: ArrowBooks, 1962), p. 185.15. Cedric Watts, A Preface to Greene (London and New York: Longman, 1997), p. 98.16. R.H. Miller, Understanding Graham Greene (Columbia: University of South CarolinaPress, 1990), p. 112.