This literature study examines religious elements in Franz Kafka’s The Metamorphosis through the grid of Kafka’s diaries and letters. The purpose is to, based on a dialogic narrative analysis and critical hermeneutics, investigate whether there is any relationship between the religious elements in the novel and Kafka’s personal attitude to religion as described in his diaries and letters. The study opposes the essentialist understanding of Kafka as a prophet of Jewish religion and instead intends to present a more complex picture of The Metamorphosis and Kafka’s own attitude to religion where his writing was a method for him to make his world more understandable.