Casti Connubii by Pope Pius XI, although written in 1930, is very much an encyclical for our times. Sadly, it is often ignored or not even known about by your average Catholic. However, if we want to strengthen marriages within the Catholic Church, this is one of the tools with which to do that!
Leila Lawler has written an excellent commentary to help us understand how we can apply Pius's teachings to our lives. It is rare to find such solid, straight-forward and hard-hitting talk about marriage from a Catholic writer. Lawler won't try to soften the truth for you, but she will try to expand your mind to help you see that God's way is the best way. As she says right off the bat, "Some might [...] become a little panicky at the thought that marriage might be something else other than a big "me" project" (106). Lawler will help you see that it is not all about you, but about something bigger, something eternal. "If you look at it [Pius's teachings] through the lens of power, you will understand nothing. If you look at it through the lens of love- the kind of love we all want, which is the love that wants the good of the other- you will find wisdom!" (114) Wisdom indeed, and also inspiration, as we are reminded that what we do in the family will have an eternal impact. What could be more important?
The book is fairly short, so anyone should be able to read it in a relatively short amount of time. I would highly recommend it for marriage prep courses. When I did marriage prep in a Catholic Church, run by catholics and by a catholic nun, you could hardly tell the thing was catholic at all. There was no talk of the Bible, Casti Connubii, Humanae Vitae, Familiaris Consortio, or indeed, nearly anything at all that the Church teaches about marriage. What a difference could be made if young people read this book by Lawler. It would at least make them think long and hard about what they are getting into, which, as the marriage vows say, should not be entered into lightly or unadvisedly. This book would also be great for anyone already married, priests, and anyone who thinks they may get married one day.
The second edition of this book contains Lawler's commentary of Amoris Laetitia (by Pope Francis), and how we might view it in light of the perennial teachings of the Church and past popes. This section really helped bring clarity to the issue for me. No pope has the authority to change such a fundamental teaching of the Catholic Church, and all new expressions of doctrine must be understood in the light of Sacred Tradition, Sacred Magisterium, and Sacred Scripture. But don't worry, Lawler's commentary is not an explosive, angry, schismatic rant against Pope Francis, accusing him of not being a valid pope, of Masons being at fault, of the Vatican being untrustworthy, etc. It is rather a logical, reasonable, and insightful look at what Pope Francis has written versus what past popes have written.
My only complaint is that it is not longer! I hope that some day Leila Lawler will write a longer and more in-depth book about marriage, because I know she has a lot of wisdom to share. Perhaps her upcoming work, The Summa Domestica, will contain that.
Remember, "The future of the world and of the Church passes through the family" (John Paul II).