Interesting discussion, of course it is all wrong.

The real story is that the Great God Icculus went into the future and stole Jerry Garcia's missing finger from Wharehouse 13. He then traveled back in time to give it to Trey with the instruction that he must perform the Oh Ke Pa Ceremony before each show or the flubasaurus will will appear. Thankfully, the cast of Wharehouse 13 are actually secret Phish fans, so they have no intention of recovering that relic.

If you look closely at Trey's guitar, you'll see an Ivory carving, which is actually made from ... Yeah, you guessed it, Jerry's missing finger.