Imagine sitting at a restaurant table. You are hungry for pizza.
You do NOT walk into the kitchen and turn on the oven yourself. That would be chaotic and dangerous!
Instead, you (The Client) tell the Waiter (The Network Request) what you want.
The Waiter brings the order slip to the Kitchen (The Server) where the Chefs prepare it.
When it is ready, the Waiter brings the steaming pizza back to your table (The Response).