You can typically determine the purpose of any random object by identifying the inputs, outputs and wastes. For example, an object with the inputs of electricity and tomatos, salt, peppers, and cilatro, and the outputs of salsa (with pre-separated waste) could be easily identified upon inspection with the purpose of nearly liquifying and mixing ingredients (ie a blender). This said, I have the answer to one of the most spoken questions of all time. I understand man's purpose in life.
With the inputs of organic matter and water and the obvious wastes, we can identify the output as hair. That's the answer we've been seeking. The purpose of the human race is to produce hair.
My second question will be, "why does God want all of this hair?"