What do you see swimming in the fluidity of your eyeballs in front of you at this very moment? Do you see words pouring, and filling the absolute length of your vision while you stare at this screen? Does the appearance of life reflect reality? Life as seen from the eyes of 6 billion humans. Low and behold, twelve billion eyes that deceive and lie to us all. When we delve deeper into the subatomic state of matter, we see that our eyes paint a false picture of what the fundamental nature of the universe really is.
When the world on a large scale, is reduced to a very small scale, we see that things are very different in reality from how they first appeared. On a large scale everything makes common sense and follows the laws of classical physics perfectly, but when we look deeper into it we find that our observations greatly contradict classical physics and it starts to act in a strange, peculiar way. This is where quantum mechanics come into the picture. It is a branch of physics that explains the behaviour of matter in the atomic level, where things start behaving very oddly.
Quantum Mechanics Introduction - http://www.light-science.com/qmintro.html
Quantum Mechanic tutorial- http://facultyweb.berry.edu/ttimberlake/qchaos/qm.html