My comment was that yes, we would be there even if we were not seen. Then I started thinking more about the subject and I had a couple of thoughts.
The first is that I heard someone once say that our bodies are "temporary earth suits." I've always pictured myself as one day being able to "unzip" this earth suit and the "real me" step out when I die...the part of me that will live eternally...the part that is who really I am. When we die, I believe that our spirits leave our bodies to go to live at the place that we chose when we were alive (Heaven or Hell).
Humans cannot see spirits leaving the bodies, so at that point we are "invisible"...only the shell of our bodies are left behind. Now, there are those who think that our spirits can somehow get "stuck" here and wonder around as ghosts. I don't believe that to be the case because I think it contradicts the Word of God.
My other thought is that many times we live as if we are invisible...as if God cannot see everything we do, hear everything we say and know every thought that we think.
Finally, is it possible that the unseen is more real than what we see? (So we fix our eyes not on what is seen, but on what is unseen. For what is seen is temporary, but what is unseen is eternal. II Corinthians 4:18 NIV)
Hmm...now that is something to think about.