but it is surprisingly easy to test this idea. Next time a thought pops into your mind, stop and ask yourself: ‘Why did I think this particular thought? Did I decide a minute ago to think this thought, and only then think it? Or did it just arise without any direction or permission from me? If I am indeed the master of my thoughts and decisions, can I decide not to think about anything at all for the next sixty seconds?’ Try that, and see what happens.