http://www.fivedoves.com/letters/oct2010/stevew1020-1.htm
 
Not sure what everything means but for sure it is about the resurrection of the dead, and you watched it.
The eye level window reminds me of the depth of the casket.
The 2 foot square window reminds me of the opening door at the head of the casket.
The concrete wall would be the vault.
What happened when you were 15?
Did you sit there and wonder what would happen after a funeral?
The dove dropping the branch.
The Arc is about to land and peace will come after the turmoil and last soul has come in.