Leisure is a mental and spiritual attitude ... not the result of spare time ... it is an attitude of the mind, a condition of the soul ... it implies an inward calm, of silence. It means not being "busy" but letting things happen. Leisure is a form of silence, of that silence which is the prerequisite of the apprehension of reality. Only the silent hear, and those who do not remain silent do not hear. ... Silence here does not mean noiselessness; it means more nearly that the soul's power to answer to the reality of the world is left undisturbed.
-German philosopher, Josef Pieper (Leisure, the Basis of Culture)