“The Myth of Sisyphus is a philosophical essay by Albert Camus. In the essay, Camus introduces his philosophy of the absurd: man’s futile search for meaning, unity, and clarity in the face of an unintelligible world devoid of God and eternal truths or values. Does the realization of the absurd require suicide? Camus answers: “No. It requires revolt.”
The final chapter compares the absurdity of man’s life with the situation of Sisyphus, a figure of Greek mythology who was condemned to repeat forever the same meaningless task of pushing a boulder up a mountain, only to see it roll down again. The essay concludes, “The struggle itself […] is enough to fill a man’s heart. One must imagine Sisyphus happy.”” – Wikipedia
This looped gif I can see as a contemporary internet-friendly depiction of this Myth of Sisyphus. Though it doesn’t seem directly applicable to cats as they are understood today.
Addendum 16/02/2014 – Further animation on the subject
Sisyphus – Animation by Marcell Jankovics