Within.

Immensity is within ourselves. It is attached to a sort of expansion of being that life curbs and caution arrests, but which starts again when we are alone. As soon as we become motionless, we are elsewhere; we are dreaming in a world that is immense. Indeed, immense is the movement of motionless man. It is one of the dynamic characteristics of quiet daydreaming.

Gaston Bachelard