The Introduction to the Devout Life by St. Francis Sales

St. Francis of sales' introduction to the devout life is just such a resource as well by extension insofar as it represents that conversation that took place between two people in the 17th century, one of whom was super holy. He's doing it in such a way so that it applies to each of our lives here in the 21st. And I think when St. Francis introduces the theme, he does so with a kind of honest acknowledgement that this is going to take time and it's going to be painful.