Let us now pose the question again: is recourse to the "human" really enough to preserve and firmly ground the reality of leisure? I intend to show that such recourse to mere Humanism is not enough.
It could be said that the heart of leisure consists in "festival." In festival, or celebration, all three conceptual elements come together as one: the relaxation, the effortlessness, the ascendancy of "being at leisure" […] over mere function.

p. 50 - Leisure, the Basis of Culture (1948)