In a number of interviews, the production staff and director have made plenty of comments to the effect of, "there's no real meaning to it. we wanted to put in some crazy but deep looking stuff to pad out the background and the Kaballah had everything we were looking for".

As for Handle's Messiah, after reading such interviews, I'm sure it was meant as a joke. While the show has it's depth, there is a lot of tongue in cheek humor in how they put anime and action movie conventions on the spot.

Hell, I began to thing that the elevator conversation scenes were beginning to become a running gag instead of just a sign of how much they were stretching the animation budget.

Later...
Kwesi k.