may the LORD cause His face to shine upon you and be gracious to you; — Numbers 6:25-26

God's face shining upon you — that's the heart of the priestly blessing. We see that glory in the face of Jesus Christ. No one has seen God at any time; the only begotten Son has made Him known. He's the radiance of His glory and the exact imprint of His nature. When God lifts up His countenance, He gives peace.