The Society of St. Pius X is an ultra-traditionalist group that denies the ​key teachings of the Second Vatican Council, a landmark Vatican gathering of bishops in the 1960s that pursued a range of reforms for the global Church. The Council also allowed for the Mass, until then said only ​in Latin, to be celebrated in local languages. The Society of St. Pius rejected that change, citing a ​desire for the Latin rite’s sense of mystery and formality.

The most conservative are also the most likely to gatekeep or paywall