I think it is only partially correct. I can THINK many things that never come true. And often times things I simply am not thinking about or intending come true. I think it's more complicated, it's a matter of Emotion fueling the thought. I have been experimenting with all emotions being healthy, and moving them through my body without attaching them to a thought. So yes when you use fear to fuel the thought, "I can't do this" you can't. When you fuel a thought like, "I Will succeed" with hope and joy, you do. The question I wondered was, I can fuel the thought, "I will succeed!" with the emotion of fear and still be manifesting? Yes! So it's not JUST thought and it's not JUST emotion, is a combo of those two plus intuition. My experience anyway.