Learn how to implement a comments feature in a Full Stack MERN (MongoDB, Express, React, Node.js) social media application. Build upon previous knowledge of setting up a MERN stack app by adding this essential functionality. Work with React and Redux on the frontend to create the user interface for comments, then connect it to the backend to store data in MongoDB. Follow along as the tutorial covers the entire process, from frontend development to backend integration, demonstrating key concepts for full stack MERN application development. Explore topics such as Redux state management, API integration, database operations, and UI enhancements like comment scrolling. Gain practical experience in building complex features for web applications using the MERN stack.