Shouldn’t be a surprise. The whole building is a huge super-conductive antenna that was designed and built expressly for the purpose of pulling in and concentrating spiritual turbulence.
Ah, yes! I knew someone would beat me to the Ghostbuster reference, but here anyway..
VENKMAN
(shrugs)
I guess they don’t build them like they used
to, huh?
STANTZ
No! Nobody ever built them like this! The
architect was either an authentic whacko or
a certified genius. The whole building is
like a huge antenna for pulling in and
concentrating psychokinetic energy.