As far as a fascination, it's just something I've noticed and thought I would share, or see if anyone else is experiencing the artwork in a similar fashion. The lyric "point that fuckin' finger up your ass" would be another example. I'm curious if this embedded symbology was intentional, subconscious, coincidental, or if I'm just reading into shit that is not there. There is also the possibility that when dealing with certain subject matters you are going to 'summon' the images and patterns that have been used by others to explaining the same subject.
This article explains the history of the symbol:
http://en.wikipedia.org/wiki/Ouroboros