2 Corinthians 3 vs 18 (NIV)- "And we all, who with unveiled faces contemplate the Lord's glory, are being transformed into his image with ever-increasing glory, which comes from the Lord, who is the Spirit."
Yes. Our physical eyes will definitely not stand his luminance, but our minds eyes can behold his splendor, from one degree of glory to another. Although, sometimes in his mercy, we are able to see physically manifestation, often times, we are taken to the realm of the Spirit where the eyes of our understanding are enlightened and we see.
And the knowledge of his person wroughts an awesome wonder. When we fix our minds on this wonder, righteousness/holiness abounds, and transformation continues.