We humans have only limited body resources: when we wake up we are usually full of energy, but over the day we discover that from a specific moment our batteries are empty. We fight with ourselves to fulfill the tasks we have put on our to-do lists but we hardly manage to bring them to the end. We feel tired and need some sleep.
School has educated us to function according to a principle. If you do not mention what the teacher wants to hear this is no good at all.
If you work in the marketing and advertising sector creativity is a very important element. It helps you to create eye-catching messages. But also enterpreneurs need original ideas. In general we human connect with it the ability to create something new and useful.