I mentioned, "breathe". My rationale was that paying attention to

your breath connects you directly to your senses, allowing your thoughts to

live their own life, accepting that thoughts are not entities, recognising that

they captured your attention away from your breath and patiently reconnecting

to the sensation of your breath, again and again, a thousand times. In this

manner you develop a new relationship with your thoughts, you let them be, you

acknowledge rumination without reacting, you are not intimidated by your

thoughts, no matter how rebarbative they might be. In the fourth part, I spent

time establishing that thoughts are incidental to the evolution of interneurons

that build predictive mental models.