With his famous equation E= mc2, Albert Einstein proved that when you come right down to it everything in the universe is energy. Both in the physical plane of our reality of matter and the abstract reality of our mind are made up of energy patterns.
The concept of a universal energy flow is not a new one. The ancient Chinese called this flow chi; the ancient Hindus called it prana. The disciplines that developed in those two cultures - t'ai chi and yoga, respectively- are based on the art of tuning in to the flow of energy and using it to centre the self.
Particle physicists try to understand the nature of nature at the smallest scales possible. Today, we know that atoms do not represent the smallest unit of matter. Particles called quarks and leptons seem to be the fundamental building blocks - but perhaps there is something even smaller.
Empty space, we have discovered, is actually not empty at all.
Everything is energy. The physicists conclude that the building blocks of everything in this Universe are subatomic particles (read my book about them, it will change the way you see your world). They are everywhere.
The scientists brought back rocks from the moon and found the same building blocks as they find in tree. They take apart a tree and find the same building blocks they find in a human being. Energy is everywhere. Energy Is.
The other Universal Law are all related to this First Law, or some call it the First Cause.