What does the novel Dracula by Brahm Stoker say about the relevance of science through the characters of Van Helsing and Dr Seward and Renfield and why is this an important element of the story?

In Bram Stoker's "Dracula," the characters of Van Helsing and Dr. Seward represent the intersection of science and superstition, showcasing the era's struggle to reconcile rational thought with the supernatural. Van Helsing, a knowledgeable scientist, uses empirical methods to combat Dracula, while Dr. Seward's medical background allows him to analyze Renfield's peculiar behavior, illustrating the limits of scientific understanding when faced with supernatural forces. This thematic conflict underscores the Victorian anxieties surrounding science, faith, and the unknown, ultimately highlighting the necessity of a holistic approach that embraces both rational inquiry and the inexplicable in the fight against evil.