Language

Thoughts become things. 

Words, physiology, and tonality
define our Language.

Joyful, loving people use joyous anguage.
Unhappy, depressed people use depressive language. 

If you are in anyway not happy about a situation, environment, relationship,
change your language - it will change your world. 

To simple?
Your thoughts, mostly subconscious, drive you. Those thoughts create your language and thus your world.