“Now faith is the assurance of things hoped for, the conviction of things not seen. Indeed, by faith the ancients received approval. By faith we understand that the ages were prepared by the word of God, so that what is seen does not originate from visible things.” (Hebr 11: 1-3)
So in faith we “see” the visible, and “understand” its invisible Source. Thus the visible can, in faith, be a constant reminder of the invisible; In faith, the visible is a channel for divine revelation. Thus we use visible symbols and icons in our liturgical Tradition, so that they point us to the invisible. Our “vision” does not stop, so to say, at the icon, but extends beyond it, toward the One or the ones depicted on it.
Today I say thank you to God for engaging my senses as He does and and always did, in various ways. These “ways” include the simple, everyday examples of beauty, like the crocuses now sloppily in bloom here and there; These “ways” also include the very big, extraordinary way He stepped into our history, letting us see His Son incarnate, walking and talking among us. I thank You today, my Lord, for reminding me of Yourself every day, in Your beautiful images. “By coming to save the world, O Saviour, You have filled all things with joy.” (Troparion of the Sunday of Orthodoxy)