Uploaded March 2026 | Updated September 2026, 3 weeks ago
This video is part of TAN Books’ Year of the Latin Mass, a year-long initiative to restore reverence, clarity, and continuity in Catholic worship.
Fr. William Rock, FSSP reviews The Hidden Treasure: Holy Mass by St. Leonard of Port Maurice. If you’ve ever wanted to understand what’s really happening at Mass—and how to enter into it more deeply—this book is a timeless place to start.
GET THE BOOK: tanbooks.com/products/books/the-hidden-treasure-holy-mass
The Hidden Treasure: Holy Mass by St. Leonard of Port Maurice is a powerful and accessible guide to understanding the true meaning and value of the Mass.
Rather than treating the Mass as routine, this classic work reveals it for what it truly is: the same sacrifice as Christ’s offering on Calvary, made present for us today. St. Leonard explains how the Mass brings grace, forgives sins, and pours out both spiritual and practical blessings in our lives.
He also offers simple, practical guidance on how to participate more reverently and fruitfully—helping readers move from passive attendance to deeper, more intentional prayer.
Short, direct, and spiritually rich, this book has shaped countless Catholic writings on the Mass and remains one of the most influential introductions to its beauty and power.
➡ Get to know more about the TLM and TAN’s Year of the Latin Mass: tanbooks.com/year-of-the-latin-mass
This video is part of TAN Books’ Year of the Latin Mass, a year-long initiative to restore reverence, clarity, and continuity in Catholic worship.
Fr. William Rock, FSSP reviews The Hidden Treasure: Holy Mass by St. Leonard of Port Maurice. If you’ve ever wanted to understand what’s really happening at Mass—and how to enter into it more deeply—this book is a timeless place to start.
GET THE BOOK: tanbooks.com/products/books/the-hidden-treasure-holy-mass
The Hidden Treasure: Holy Mass by St. Leonard of Port Maurice is a powerful and accessible guide to understanding the true meaning and value of the Mass.
Rather than treating the Mass as routine, this classic work reveals it for what it truly is: the same sacrifice as Christ’s offering on Calvary, made present for us today. St. Leonard explains how the Mass brings grace, forgives sins, and pours out both spiritual and practical blessings in our lives.
He also offers simple, practical guidance on how to participate more reverently and fruitfully—helping readers move from passive attendance to deeper, more intentional prayer.
Short, direct, and spiritually rich, this book has shaped countless Catholic writings on the Mass and remains one of the most influential introductions to its beauty and power.
➡ Get to know more about the TLM and TAN’s Year of the Latin Mass: tanbooks.com/year-of-the-latin-mass
