Your mind manages all of your life: your outlook, how you approach situations, and how you interact and work with others. It's a feeling of great freedom to think whatever you want. Sure, there are random thoughts that come and go that you can't do anything about. But the ones you put in and hold, you control.
Outside of having brain damage, disease, or mind-altering substances, you're in complete control of what goes on inside your head—if you choose to be.
You already know this, but I'm emphasizing these facts because I want you to understand how empowering they can truly be. You rule your world and run your life with the perspective you choose.
Or, as one CEO told me, "Your mind is your boss, and you gotta be self-employed."