. >> reporter: the best-selling oprah-approved self-help guru eckhart tolle. >> largeness arise which is different from thinking. >> reporter: tolle was the first person i ever heard talk about the voice in the head, which he says is so busy obsessing about the past or the future that you miss what's happening right now and make stupid decisions. like i had done when i got depressed and self-medicated with drugs. so i decided i need to meet this guy. >> do you stop thinking? how do you stop the voice in your head? >> you create little spaces in your daily life where you are aware but not thinking. for example, you take one conscious breath. >> reporter: unbreak my heart, tolle. that's all the practical advice you've got? >> i can hear the cynics in the audience saying -- guys saying, i can awaken by taking a deep breath, what is he talking about? >> yes. that's the mind talking. so that's -- of course many people will have their mind commenting on what i'm saying and saying that is useless. >> that was exactly what my mind was saying. >> don't you ever get pissed off, annoyed, irritat