The "Main Idea" of a text is the central point or concept that the author wants to convey. It summarizes the primary message and helps readers understand the overall purpose of the content. Identifying the main idea is crucial for comprehension, as it allows readers to grasp the essential information without getting lost in details. To find the main idea, readers can look for key sentences, often located in the introduction or conclusion. Supporting details, such as examples or facts, help reinforce the main idea. Understanding the main idea enhances reading skills and aids in retaining information from texts like articles, books, or essays.