Message Switching is a method of data transmission where entire messages are sent from the source to the destination without needing a dedicated path. Instead of establishing a continuous connection, messages are stored temporarily at intermediate nodes until they can be forwarded to the next node. This allows for efficient use of network resources, as multiple messages can be stored and transmitted based on availability. In Message Switching, each message is treated as a separate unit, which can lead to delays if the network is busy. However, it is beneficial for applications where large amounts of data need to be sent, such as in email or text messaging, where messages can be sent and received asynchronously.