Most everything in life is MENTAL. It is up to you how you want to interpret what you perceive. You have control over how you feel, how you react to pain, sadness, happiness… you are controlling your world. Everyone has the power to expand the reality of their world. It just takes the mental power of expanding your context of your brain. School teaches you how to expand your content, but you have to also expand your context.

context: That which surrounds, and gives meaning to, something else.
content: That which is contained; the thing or things held by a receptacle or included within specified limits.

Based off of those definitions, you can see that expanding your content is like using a microscope (seeing things on a small scale or becoming more specialized), and by expanding your context is like using a telescope to see things on a larger scale. To increase the size of what is known, rather than knowing a lot about one topic.