The document discusses using the VM component in Mule applications for intra-JVM communication between flows. The VM component uses in-memory queues by default but can be configured to use persistent queues. An example flow is provided that demonstrates a main flow triggering a subflow using the VM component, with log messages output from each flow. Key features of the VM component are that request-response endpoints deliver messages directly in the same thread, while one-way endpoints deliver asynchronously via a queue.