I actually think the most important clue is when she said,
"That isn't a Windowless Building." What if our basic assumption was wrong, and that isn't a '
building'?The second clue is that it has
life sustaining capabilities within, and they emphasize abit about it's
cosmic ray protection.
So what is the '
Windowless Building'? Well one possibility is that it's a metaphoric '
Cocoon', nurturing and protecting something within, maybe Crowley, maybe Aiwass, maybe something else we don't know yet.
Another possibility is... Well... Maybe Aleister just built himself a fucking Starship
?
(Hint: The Planet itself might just be a means to an end.)