If your thoughts create the world, you are your thoughts
Watch how water is affected with just thoughts
It is impossible to control every thought that enters our minds. However, we can make the effort to patrol our mental environment. We have the power to accept or reject any thought that floats through our consciousness. The only trick is to be conscious.
What are your foundational thoughts? Which ones are you choosing to keep? Which ones are you willing to change? The choice is solely your own.
Through Meditation Practice this becomes easier.