What does an illustrative writing style primarily use to support its main idea?

An illustrative writing style primarily utilizes examples that relate to a topic sentence to enhance and clarify the main idea. This approach allows the writer to provide concrete images or scenarios, making abstract concepts more relatable and understandable for the reader. By employing specific examples, the writer can illustrate the points being made, offering clarity and a deeper understanding of the topic at hand. This method engages the reader's imagination and helps solidify the main idea by demonstrating it through real-life applications or detailed descriptions, ensuring that the intended message is conveyed effectively.