An empty hour looks different before and after you decide how to use it.

Unclaimed time can feel like pressure. The same sixty minutes shift from something vaguely accusing to something restful the moment you decide what they are for, even if what you decide is to do nothing. The relief comes from the deciding rather than from the activity.

When a gap opens up, name it before you enter it: this is for reading, this is for a walk, this is for sitting down. It takes a second, and it usually saves the hour from being spent half-doing several things.