Session Persistence is a technique used in web applications to ensure that a user's session remains active and consistent across multiple requests. When a user interacts with a website, their session data—like login status and preferences—needs to be stored and retrieved efficiently. This allows users to enjoy a seamless experience without losing their information as they navigate through different pages. To achieve Session Persistence, developers often use methods like cookies or server-side storage. Cookies are small files stored on the user's device, while server-side storage keeps session data on the server. Both methods help maintain user context, making web applications more user-friendly and efficient.