We're impossibly conflicted creatures. We're biological animals, but also symbolic creatures who can conceive of the Higgs boson, the Mona Lisa smile, the yo-yo, and infinity. To keep your mental balance we use denial to manage these creaturely contradictions. Whether it's healthy or toxic, funny or crazy, denial is built into us. It protects us from the undercurrents of terror and insanity that course through life. We joke about Da Nile to raise our spirits to explore it.