What do you do when you get to the end of your world where you find maybe a gate, maybe a wall, maybe a cliff or maybe... nothing? What do you do when you get to the end of your mind and find there waiting for you a question you cannot comprehend? What do you do when you get to the end of your possibilities, the limit of your capabilities, and run out of road? And what do you do the morning after you have attained your greatest goal, the summit of your striving; and looking ahead all you see is comfort and contentment glaring you in the face? When the answer you find answers your question but does not quench you thirst? What do you do?