Abraham, old and childless, was named the father of nations before a single child arrived. That is the whole art of it. The power a person carries speaks of the wanted thing as already done, while the senses still report nothing. It calls what is not yet here by the name it will wear when it comes.
So the dead are quickened. A dead hope is one the outer facts have flatly denied, and it revives the moment a person occupies the wish fulfilled instead of the empty present. To assume the state of the answered prayer, and to speak from it, is to call the unseen into being. The world obeys the state a man dwells in, not the state he can presently measure.