Astrological Alignments Irrelevant?

[Liber]

This had me thinking in respect to astrological alignment critical rituals, and finding one's own astrological spirit/daemon/genii:

http://www.youtube.com/watch?v=oQPFoDkGFrU

I know science and rationalism are best left at the door concerning these works. But if the zodiac is out of whack, then how does this affect all the works involving it?