Deep in the Amazonian forest, young couples looking to wed or baptise children often turn to Sister Alba, who fills in where Catholic priests cannot be found.
Many Amazonian bishops present at a three-week assembly at the Vatican want the Roman Catholic Church to create official roles for them.
The very suggestion that the male-centric, centuries-old church could do that has thrown traditionalists into a tizzy, and it's not a change
Pope Francis is currently willing to contemplate.