The capacity

The ability is like a helmet that waterproofed the fragility of the head on a road at high speed, full of obstacles, holes and natural contingencies. When faced with some difficulty in the way, the helmet is the first to suffer damages. To protect all content that was coated. The very fragile 'head' unprotected was the one that used its methods of power to create something so useful to be used as a complement of protection.

This may explain why, in the face of such physical frailty and dependence to compare itself with other animals of nature, the human being was able to survive, without clawing, without agility, without physical force, without wings, without great diving abilities or significant size (compared to an elephant), but all that does not have outside, has within its small 'head' in which it reflects and transforms all the reality of the world that surrounds it, giving to it all power of creation, philosophical independence and the capacity of reasoning , in which culminated the creation of an entire cluster of complexity in their social interrelationships.

Just like the helmet that is an instrument created from the head of a human to use defense on the road of life in which it traverses, the ability was the engine to propel it. And it lives inside your 'head'.