The literary theme is a device that should always be present in every fiction story. While a book ought not to preach a message, it should always convey and communicate a message. When a theme is successfully delivered, it becomes the real power of a fiction piece. For that reason, readers remember a book because of the heartfelt messages they receive. You can mold one’s thinking by reinforcing cultural values, social issues, life lessons, and the like. So think of encompassing a message as an opportunity to share your thoughts, beliefs, and principles in life.