The Invisible Less Certain than the Visible?

A certain theologian is reported to have said on his death bed, "Life is a riddle and death is a still greater one." In this statement there lies a challenge. Indirectly we wish to meet the challenge in this essay. Certainly if "life is a riddle" the most "prudent" must attempt to solve it. Is life a riddle? Is it one great night-mare, in which one feels ever more perplexed, lost at sea, groping in the dark? If so the "pessimistic" world- and life-view is the correct interpretation of the...