...pretty sure i know what it means... some isht from the revelation of john... but i think it's a flawed statement because revelation doesn't say those are the only people who'd get to the shining city...
...and...
...more importantly... it's entirely possible that revelation isn't totally about future prophecies, but it's instead a coded communique to the christians of the era about the times in which they were living... the jewish alphabet also doubled as the jewish numerical system, so there are amazing things revealed if you look at the numerology of the book...

...but that's just me...
-kevin

"without awareness, there is no life... only activity"