Imagine you are sitting in your house and you want to talk to your friend who lives far away. You pick up your phone and dial your friend's phone number. There are many people who also want to talk on the phone, just like you. This means that your phone call needs to travel through many wires and devices before it gets to your friend, and it is possible that there may be some problems or delays along the way.
Now, think about virtual channels as something like a magic tunnel. Inside the tunnel, there are many different colored balls. Each colored ball represents a different phone call. When you make your phone call, a ball of your chosen color is set aside just for your call. This means that your phone call has its own dedicated path through the tunnel, and it won't get mixed up with anyone else's phone call. It's like having your own private road that only you can use.
Virtual channels work in a similar way to the magic tunnel. When you send information over the internet, it is broken down into small pieces called packets. These packets are then sent through different devices before they reach their destination. When you use a virtual channel, your packets are given a dedicated path to travel through. This means that they won't have to compete with other packets for bandwidth, and they will arrive at their destination more quickly and reliably.
In summary, a virtual channel is like having your own private road for your phone calls or internet packets to travel on. This makes communication faster and more reliable.