“In the physical world many things are invisible to us, but we nevertheless know that they exist—most often due to their consequences. For example, no one sees electricity, but even someone completely skeptical about electricity can feel it…It is the same with God’s grace—it is known not by its essence, because the nature of grace is hidden from us, but by the traces that grace leaves in our lives.”
(Patriarch Kirill of Russia, recent homily)