From Hesse’s Demian, p. 74:

“The things we see,” Pistorius said quietly, “Are the same things that are in us. The only reality is the one we have in us. That’s why most people’s lives are so unreal, because they consider the external images to be real and don’t allow their own world within themselves to tell them anything. They can be happy that way. But when a person once knows the other way, he is no longer free to choose the path that most people follow. Sinclair, the path of the majority is easy, ours is hard - Let’s go.”