A theatrical device is a technique used in drama to enhance storytelling and engage the audience. These devices can include elements like monologues, soliloquies, and asides, which allow characters to express their thoughts and feelings directly to the audience. They can also involve stagecraft elements such as lighting, sound effects, and set design that contribute to the overall atmosphere of a performance. Additionally, theatrical devices can involve narrative structures, such as flashbacks or foreshadowing, which help to build tension and develop characters. By employing these techniques, playwrights and directors create a more immersive experience, allowing the audience to connect with the story on a deeper level.