In the video titled “RAG Like a BOSS 🔥 Flowise Document Stores Tutorial” by Leon van Zyl, the host demonstrates how to use Flowise Document Stores to enhance the efficiency of RAG (Retrieval-Augmented Generation) applications. The tutorial covers the creation of a chat flow, setting up a document store, and integrating tools like Pinecone for vector storage. Leon explains how to automate document retrieval and management, making it easier to maintain AI applications. The video emphasizes the advantages of separating AI logic from the knowledge base for better scalability and maintenance.