Inside the prayer wheels are scrolls with mantras written on them. It is believed that by turning the prayer wheels the thoughts contained in the mantras will spread out into the world.
As with the mantras inside prayer wheels, there are thoughts inside our minds.
Focusing positively on what you want and visualizing positive outcomes will change your life accordingly.
“You can close the windows and darken your room, or you can open the windows and let light in. It is a matter of choice. Your mind is your room. Do you darken it or do you fill it with light?”—Author Unknown

Taken on my 1st day in Nepal
I had a dream a couple of nights ago that was very sci-fi and nightmarish. When I was going over the details that I could remember the next morning, and as typical with my dreams, there were a lot of things I could recall, I asked myself to put a few words together that would summarize the meaning of the dream. As dreams often are, it was entirely bizarre and I wondered what on earth everything meant. But as I began to decipher it I came up with one statement: There's power in positive thinking.
There was a part toward the end of the dream where I was so frustrated with the events and the feeling of being captive that I discovered if I just used my thoughts I could protect myself and use them as a power against all the evil that was around me. I could go through walls, and move through inanimate objects without being hurt.
I share this message since it's one that may benefit others. My best guess for how this dream applies to my waking life is that my subconscious is telling me to remain strong in the face of seemingly insurmountable obstacles. Thought has energy. Stay focused. Think positively.
Easier said, than done .... but I'm working on it ...