The boy reached through to the Soul of the World, and saw that it was part of the Soul of God. And he saw that the Soul of God was his own soul. And that he, a boy, could perform miracles.
The believers in miracles accept them (rightly or wrongly) because they have evidence for them. The disbelievers in miracles deny them (rightly or wrongly) because they have a doctrine against them.
Rarely do we realize that we are in the midst of the extraordinary. Miracles occur all around us, signs from God show us the way, angels plead to be heard, but we pay little attention to them because we have been taught that we must follow certain formulas and rules if we want to find God. We do not realize that God is wherever we allow Him/Her to enter.
One of the names of Buddha is TATHAGATA - one who lives in suchness, one who has become free from all the distractions of the mind. And the miracle is that the mind consists only of distraction, so once you are free of all distractions there is no mind left. In the present there is no mind. In the present there is only consciousness, awareness, watchfulness.
I can believe a miracle because I can raise my own arm. I can believe a miracle because I can remember. I can believe it because I can speak and be understood by you.