goals
One of the growing stages in developing your business is goal setting and creating projects. Here the fun starts. When you set a goal and create a project, ideas get real. Results are defined, a game is created. Maybe it is a group project, now players can join the game/ clients can join the business. Now you can see if it is really the right idea, if yes, energy comes in, anxiety, excitement. You feel the risk to loose, if the game is the right challenge. That creates this stimulating flow of energy.
A good example is the article "NaNoWriMoOhNo!" in the 'news for entrepreneurs' section. The author of this blog decided to write a novel in one month, supported by an online-community. You can sense the excitement of creating a challenging game.