To move around in Dreaming Brain, click and drag in the panorama windows, with your mouse button held down. The first panorama window is the Cosmos. You will see that as you move your cursor over certain areas, such as the planets, the icon will change into a globe. This means that this area is clickable.

When you click on a planet, you will see a circular button, called a preview button. Clicking on the preview button will take you to another place in Dreaming Brain. Planet icons indicate what planet you are on, and they will always bring you back out to the Cosmos. The rest is up to you.