This question haunts human existence, mainly because we are so accustomed to viewing the world in terms of means and end. We do certain things, like go to work and brush our teeth, with specific goals in mind--earn money and avoid cavities, for instance. But Zen teaches us that there is another way to live, in which every moment is complete in itself. Nothing is a means to an ends, but rather an expression of the ultimate moment--Now.
Introduction and sound engineering by Tom Eunsahn Gartland.