someone who worked on the vault
http://blogs.villagevoice.com/runninscared/2012/02/scientologys_se.php
“I told him I understood that concept, but why the big logo visible from the air (which at that time was still being planned)?
“That’s where LRH is supposed to go, when he returns,” Gill says. Once Hubbard adopts a new body, he’s expected to make his way to one of the CST bases. “That’s where he’s supposed to be raised and be taken care of,” Gill says. “So the symbol is a way for a spirit to find its way back to where it belongs.””
Thanks! I knew of one up in the Seattle area.