I need to rake the leaves later today. When I look outside my office window, I can see myself standing there, raking. I can feel the cold come in under my sweater, and I can see my breath form little clouds in the freezing air.
It’s not a pleasant vision, but it still allows me to get comfortable with the idea. It makes me believe that, in a few hours, I’ll actually be raking, and that alone increases the likelihood of me going outside by a great deal.
When it comes to a new reality, every animal will “believe it when they see it.” Humans are the only creatures who can bring about said new reality by turning the phrase around. See it in order to believe it. Once you can feel something being true in your heart, often all it takes is a little push for life to adjust.