Yes. Fortunately, dreaming is accompanied by the phenomenon of sleep paralysis, which keeps me from (for example) sticking needles in my eye before I wake up. In the dream I might be able to stick a needle in my eye without consequences, but outside of the dream (ie in the realm of reality) I would be blinded. What happens in your head, including dreams and imaginations about the infinite power of God to do anything, cannot be manifested as "real".