Reality is created by the mind. We can change our reality by changing our mind.

Mind control is the result of self-discipline and habit. You either control your mind or it controls you. There is no hall-way compromise.

You have two choices, to control your mind or to let your mind control you.

I seem to have mastered a certain amount of control over physical reality.

Turn on the full powers of your will and take complete control of your own mind. It is your own mind! It was given to you as a servant to carry out your desires. And no one may enter it or influence it in the slightest degree without your consent and cooperation. What a profound fact this is!

Control your mindset. Dominate your thought process. This life is all a fucking mind game. Realize that. Own it!

So what is happening in your mind is your creation. Isn’t it so? World around you is just giving you information. The world is throwing pleasant information into you, unpleasant information into you; everything that is happening, it is just throwing it into you. What you do with this damn information is definitely yours. Yes or no?
When the activity of the mind is yours, the suffering that the mind generates is definitely your making. Would you generate unpleasantness and suffering for yourself if your mind was taking instructions from you? No. That means your mind is out of control.

Every experience you have ever had has been shaped by your mind.

Mind is reality. with one thought you can be in heaven, with another, in hell.

You created the reality you now exists in with your thoughts, which means you can use the very same power of thought to change it.

If both the past and the external world exist only in the mind, and if the mind itself is controllable - what then?

You have control over your mind — not outside events. Realize this, and you will find strength. — Roman emperor Marcus Aurelius, Meditations

I am my world.

But it is your mind, rather than circumstances themselves, that determines the quality of your life.