When that occurs, nothing is impossible. When the angel Gabriel spoke with Mary concerning the birth of Jesus, she inquired as to how such would happen. The angel said it would be through an act of the Holy Spirit I.E., a virgin birth. It is unlikely that our Lord would have been born through Mary if she would have question the method, or the message, which the angel announced. Reversing the binoculars, I peered through the wrong end.
Prayer works similarly.
If we were honest, much of what we call prayer is a lot of frustration taken out on God for not pulling us out of a jam. We've spent very little, if any, time praying until that very moment. Usually, the only reason we are praying, is due to the exhaustion of personal interventions. The best lesson I learned during my time of prayer was to wait upon God. Many of my daily prayer times, therefore, became silent sanctuaries of worship.