The Emperor teaches us about the use of power. He represents our ability to command and create in our lives. When we use our power in a really healthy way, we have good boundaries, we're able to channel our power in our work and relationships, and we don't feel that we are either too submissive or too dominating. We find the beautiful middle ground that is EMPOWERMENT.
Acting from an empowered place makes us able to create more in our lives. You can't create from a restricted state, and it's also hard to create from a submissive, beaten down state. Keep a healthy use of power in the day to day, and you'll feel more openness and flow filling your life.
To your creative flow!