Jesus claimed to be the "image" of His Father. An image in the natural world is only possible when rays of light strike a surface capable of "reflecting". If we equate the sun as the "Heavenly Father" and the Son the "image" then completing the metaphor, the Holy Spirit would be the light rays that strike the mirror creating an "image" for humanity to observe.
" In whom we have redemption through his blood, even the forgiveness of sins: 1:15 Who is the image of the invisible God, the firstborn of every creature: 1:16 For by him were all things created..."
(King James Bible, Colossians)
"... whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them."
(King James Bible, 2 Corinthians)