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The Four Keys to Everlasting Love

The Four Keys to Everlasting Love

How Your Catholic Marriage Can Bring You Joy for a Lifetime 

Author: Karee Santos

Author: Manuel P. Santos, MD

Foreword by: Christopher West

Price: $15.95

Format: Paperback

Pages: 256

Trim size: 5.5 x 8.5 inches

ISBN: 978-1-59471-603-4

Imprint: Ave Maria Press

On-sale date: April 8, 2016

More Marriage and Relationships, Personal Growth


Pope Francis, in his recent exhortation Amoris Laetitia (“Joy of Love”), praises marriage as a unique “friendship marked by passion” and “a free, faithful, and exclusive love.”  We live in a culture that doesn’t cherish the permanence of marriage, according to Karee and Manuel Santos. Even Catholics aren’t immune from the epidemic of divorce. But how can you make the ideals of being forever, faithful, fruitful, and free a reality? How can you maintain a healthy Catholic marriage when society is pushing against it?

In The Four Keys to Everlasting Love, the Santoses draw on real-life stories, scriptural principles, and the timeless wisdom of St. John Paul II to help you celebrate the sacrament of Marriage without downplaying the difficulties of married life. In doing so, they will inspire you to stay in love with each other, Christ, and the wisdom of the Church.

The Santoses tell their own story as well: how they learned not to cling to personality, culture, or religious differences; how they learned to put family first; how they overcame health crises that exacted a physical, emotional, and spiritual toll; and how they navigated stressful holiday get-togethers with extended family. They let God transform them and make their marriage stronger.

Each chapter provides discussion questions, action prompts, quotes from the Catechism of the Catholic Church and various popes, and additional online and print resources to stimulate the couple’s conversation, mutual understanding, and positive change. Free worksheets and other supplemental resources are available on the authors’ website,

Features & Benefits

  • Divorce rates have tripled among Catholic couples since the 1970s. This resource for engaged and married couples offers faith-based advice on making their marriage last.
  • The authors call upon the writings of St. John Paul II and his Theology of the Body.
  • The book is accessible enough to use individually or in small-groups.


"Practical yet spiritually rich."

"In The Four Keys of Everlasting Love, you will meet two remarkable people who have experienced authentic love, having embraced joy and sorrow alike. Practical yet spiritually rich, this book is the fruit of his private practice as a counselor to couples in crisis and of their ministry together in marriage preparation. While reading it you will discover, as the Santoses have discovered, that just as Jesus turned water into wine at the wedding feast of Cana, so too does he ‘restore the wine’ in the lives of every couple who invite him to their marriage."

From the foreword by Christopher West
Author of Good News about Sex and Marriage

"An invitation to heroic virtue."

"In my experience as a Catholic relationship book junkie, this is my first encounter with a book that spans every season of marriage, from engagement to young family life and beyond. Karee and Manny Santos offer something rare: practical, livable, and holy ways for couples to live out their wedding vows in a complete gift of self—in everything from work to money to holidays and hospitality. Looking to scripture, the saints, and St. John Paul II’s theology of the body, their wisdom, borne of many years together in sickness and in health, does more than just present a roadmap for the shared life between a husband and wife and their family.  The Four Keys to Everlasting Love calls spouses to a true engagement (ahem!) and communion with the Church and the world, one that authentically fosters a ‘civilization of love.’ This book truly is an invitation to heroic virtue, fully alive in pursuit of God’s glory, with your spouse by your side."

Stephanie Calis
Catholic blogger and author of Invited: The Ultimate Catholic Wedding Planner

"Spot on!"

"Fearlessly sharing their own marital and family struggles, Karee and Manny Santos show how every family can reach the alluring ideal to which God calls them, drawing others to heaven in the process. Their many easy and practical suggestions are spot on!"

Rev. John R. Waiss
Pastor and author of Couples in Love

"Not to be missed!"

"Whether engaged or long-married, Catholic couples will fall in love again as they implement these simple but powerful strategies for creating a lifetime of mutual joy. The Four Keys to Everlasting Love unpacks the secrets of genuine togetherness through personal witness, case studies, the writings of the Church, and superb practical recommendations. Not to be missed!"

Lisa Mladinich
Author of the Be An Amazing Catechist series

"An instant, classic, go-to resource."

"What Dr. Manny and Karee Santos have done with Four Keys to Everlasting Love is to create a resource that we all need. Yes, all of us. Whether you’re single and contemplating marriage, newlywed or an old hand at vows, priest or catechist, this book has something for you. What you’re holding in your hands is a book that’s going to become an instant, classic, go-to resource for parishes, spiritual leaders, and anyone who cares about the future of Catholic marriage."

Sarah Reinhard
Catholic author, speaker, and blogger

"A good resource for couples."

"A good resource for couples. The authors' married witness and clear attention to Catholic teachings make it very appealing."

Rev. Nicholas Zientarski
Dean of Students
St. Joseph's Seminary at Dunwoodie, Yonkers, New York

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