Upside down crosses have deep spiritual and christian roots.....
a small search to illustrate .....
http://www.fisheaters.com/symbols.htmlPeter's Cross: because when Peter was to be martyred he chose to be crucified upside-down out of respect for Christ, the upside-down Latin Cross has become his symbol and, thereby, a symbol of the papacy. Sadly, this cross has been co-opted by Satanists whose purpose of "inverting" Christianity (e.g. as in their Black 'Masses') is expressed by taking the Latin Cross of Christ and inverting it. At various anti-Catholic Protestant websites, I've seen pictures of the Holy Father standing in front of Peter's Cross with captions such as "The Pope worships Satan!!!!!!!" It'd be funny if it weren't so sad and ignorant.
