If you wish to be the master of your world, then you must first be the master of your own mind. Your mind and your thoughts are what make you, you. Not being in control of one’s own thoughts, is the equivalent to a driver not being in control of the steering wheel. You never know where you’ll end up being that reckless, so control your thoughts.
If you control your thoughts, then you will have better control over your world.
You can own your thoughts by deciding what kind of things you think about. If you think negative thoughts, then it will be easy for more negative thoughts to sneak their way in. You catching on? Basically, think positive thoughts and more positive thoughts will follow. Use this knowledge to become the master of your own mind.