You offered, “The Church teaches that Purgatory is a state of purification prior to entry into heaven.” Is it then the catholic belief that when the Holy SPirit births someone from above that He can’t do a sufficient job, such that the new born must finish the work? ... And in just reading that question, if the new birth has occurred in YOU, asking that question pricks your spirit to cringe at the blasphemy therein. BUT, if one is not yet born from above, that question slips right into the psyche and the pride of self is stimulated to try and perceive the question and possible answer as something you can do for God. Which way did it register? ‘Try yourself, to see what spirit is in you’ The Apostle Paul.
Can’t wait to see the response.