Sigrid Undset's Catherine of Siena is critically acclaimed as one of the best biographies of this well-known and amazing 14th-century saint. Known for her historical fiction, which won her the Nobel Prize for Literature in 1928, Undset based this factual work on primary sources, her own experiences living in Italy, and her profound understanding of the human heart.

Born Helena Kowalska on a clear August day in 1905, to a poor Polish family, she was the third of 10 children. When Helena turned 19, she felt called by Jesus to go to Warsaw and enter a convent. After arriving, she was turned down by convent after convent, until finally, one accepted her. She took the name Faustina and stayed in the convent until her death in 1938.

One part biography, one part prayer book, The Life and Prayers of Saint Padre Pio is an essential for any Christian. The foundation for Padre Pio's work in the world was love. His love of God became intertwined with his love of humanity so that the two became inseparable and unwavering. Padre Pio is notable not for his erudition or even his teachings, per se, but for the man he was and the intercessor he continues to be. Pio gave himself to Christ as a spiritual victim for the souls of sinners.

The Interior Castle, also titled The Mansions, is a classic work of Christian mysticism by St. Teresa of Ávila. Published in 1588, the text serves as a practical guide for those who wish to achieve mystical union with the divine. Teresa viewed the soul as a “castle made of a single diamond”, which contains seven mansions or dwelling places. The concept of the immanence of God - who dwells in the seventh mansion - was central to her spirituality.

The path of following Jesus is an ancient and storied spiritual tradition. Yet many believers are not familiar with the three major forms of prayer and the three stages of spiritual growth that exist to bring them closer to God. In his most personal book yet, Brant Pitre, PhD, draws on the riches of the Bible, the words of Jesus, and the writings of mystics across the centuries to shed light on the mystery - and wonder - of the spiritual life.

Hailed by many as the best modern book on Christian spirituality, Celebration of Discipline has helped more than one million seekers discover a richer spiritual life infused with joy, peace, and a deeper understanding of God.

Meet the mighty spirits sent by God to enlighten and guide us, defend us from harm, and lead us on the path to eternal life. Learn how angels are invisibly present at every moment of your life, and how they can pray with you and for you, amplifying your praise by reflecting it directly to God face-to-face. Angels do not form a separate universe they are an integral part of our own world sent forth for the sake of our salvation. They are pure spirits who communicate to us God's grace, His goodness, and His truth.

So begins David Anders in this remarkably forthright book. In it, David reports that by the early 2000s, his marriage was so painful that he and his wife had just one thing in common: contempt for each other. Today, he and his wife are extremely happy together not because of marriage therapy, but because they came to know and fully embraced the Catholic church's teachings on marriage. Many people who encounter the church's teachings are shocked by their rigor.

From Fr. Gabriele Amorth, the renowned exorcist in Rome, comes this powerful, eye-opening book on the deadly antics of Satan and his fallen angels, as well as spiritual remedies for each. This book provides a basic orientation in the dark phenomenology, succinctly explaining Catholic doctrine on the fallen angels and the innumerable manifestations.

Is God a wrathful judge? A gentle healer? A father? Brother? Friend? In The Relentless Tenderness of Jesus, Brennan Manning brings you to a deeper understanding of the true nature of God. Through poignant and unforgettable stories and challenging observations, Manning helps you stretch your mind and reject simplistic explanations of who God really is.

When Augustine handed over the leadership of his church in AD 426, his successor was so overwhelmed by a sense of inadequacy that he declared, “The swan is silent”, fearing the spiritual giant’s voice would be lost in time. But for 1,600 years Augustine has not been silent - and neither have the men who faithfully trumpeted the cause of Christ after him. Their lives have inspired every generation of believers and should compel us to a greater passion for God.

Over the past 20 years, Matthew Kelly has seen more of the world than most presidents and more of the Church than most bishops. Now, in this unique and timely book, he proposes that Catholicism is not a lifeless set of rules and regulations, but a way of life designed by God to help each person reach his or her full potential. With remarkable insight, Kelly dispels dozens of myths that surround the rejection of Catholicism today and provides a profound and practical vision of what will lead the Catholic Church to thrive again in the future.

This runaway best seller shows both the basic logic of the Enneagram and its harmony with the core truths of Christian thought from the time of the early Church forward. Experience author Richard Rohr's expertise and advanced thought on the subject, easily laid out for all audiences.

Most people think of God's will as something to be found or as the receiving of guidance from God when making decisions. Too often, however, the problem is not that we don't know what God desires for our lives, but rather that we just don't want to do what we already know he wants. How might our wills be changed so that we become both willing and able to do what God asks of us? In Desiring God's Will, psychologist and spiritual director David G. Benner explores the transformation of the will in Christian spirituality.

Drawing upon the teachings of seven spiritual doctors of the church, Ralph Martin presents an in-depth study of the journey to God. This book provides encouragement and direction for the pilgrim who desires to know, love, and serve our Lord.

This runaway best seller shows both the basic logic of the Enneagram and its harmony with the core truths of Christian thought from the time of the early Church forward. Experience author Richard Rohr's expertise and advanced thought on the subject, easily laid out for all audiences.

In Wrestling with God, Ronald Rolheiser offers a steady and inspiring voice to help us avow and understand our faith in a world where nothing seems solid or permanent. Drawing from his own life experience, as well as a storehouse of literary, psychological, and theological insights, the beloved author of Sacred Fire examines the fears and doubts that challenge us. It is in these struggles to find meaning, that Rolheiser lays out a path for faith in a world struggling to find faith, but perhaps more important, he helps us find our own rhythm within which to walk that path.

Søren Kierkegaard is one of the most passionate and challenging of all modern philosophers, and is often regarded as the founder of existentialism. Over about a decade in the 1840s and 1850s, writings poured from his pen pursuing the question of existence - how to be a human being in the world? - while exploring the possibilities of Christianity and confronting the failures of its institutional manifestation around him.

The boring debate between fundamentalist believers and non-believers is finally moved on by Alain de Botton's inspiring new book, which boldly argues that the supernatural claims of religion are of course entirely false - and yet that religions still have important things to teach the secular world.

The Interior Castle, also titled The Mansions, is a classic work of Christian mysticism by St. Teresa of Ávila. Published in 1588, the text serves as a practical guide for those who wish to achieve mystical union with the divine. Teresa viewed the soul as a “castle made of a single diamond”, which contains seven mansions or dwelling places. The concept of the immanence of God - who dwells in the seventh mansion - was central to her spirituality.

Why are modern Christians so indistinguishable from everyone else? How come Christians who lived in times of bloody persecution were so heroic, while we who live in safety are not? How could the first Christians fast valiantly, but we feel deprived without dessert? How did New Testament believers pray without ceasing? How could the early Christian martyrs actually forgive their torturers? What did the Christians of the first centuries know that we don't? This book explores these questions.

In his acclaimed books, renowned writer, speaker, and philosophy professor Dallas Willard explored the nature of Christian life in God's Kingdom. Yet one topic remained undisclosed: Willard's understanding of heaven and eternal life. In the months before his death, Willard engaged in moving and insightful conversations about the meaning of life and the life to come with close friend and theologian Gary Black, Jr. These inspiring dialogues were steeped in biblical theology as well as practical wisdom grounded in the here-and-now.

Teresa of Avila's Interior Castle is one of the most celebrated books ever written by a mystic on abiding in union with Christ. Writing in obedience to the requests of two of her superiors, the humble 16th century Spanish sister protests "...for the love of God, let me get on with my spinning and go to choir...like the other sisters...I am not meant for writing; I have neither the health nor the wits for it."

Listeners will be fully engaged in a unique and altogether fascinating discussion of Christian spirituality. Rolheiser seeks to reconcile the rift between a smorgasbord of spiritual voices and an authentic Christian discipleship by the use of anecdotes, personal examples and a wide range of literary and cultural references. His starting point is the desire within us that longs irresistibly for fulfillment.

The Confessions by Saint Augustine is considered an all-time number one Christian classic. Augustine undertook his greatest piece of writing with the conviction that God wanted him to make this confession. The Confessions is, in fact, an extended poetic, passionate, intimate prayer.

The Varieties of Religious Experience is considered to be the classic work in the field. To quote Wikipedia, "James was most interested in understanding personal religious experience. The importance of James to the psychology of religion - and to psychology more generally - is difficult to overstate. He discussed many essential issues that remain of vital concern today. What makes James writing so special is that he could take a very complex subject and, without watering it down, make it understandable to 'the rest of us.'"

Who was medieval Italy's Francis of Assisi? Millions knew him as the saint who first received the stigmata of Christ, as a champion of the poor, and as a mystic who possessed a divine rapport with the natural world. But few know that Saint Francis also created an extraordinary system of practices to radiate a joyfulness of spirit inward to the soul and outward to the world. On The Way of Saint Francis, scholar and friar Murray Bodo reveals the life of this celebrated saint and shares specific meditations, prayers, and teachings to cultivate the 5 great keys of Franciscan spirituality: Silence, how to use inner and outer quietude to prepare a sacred dwelling place within; Purification, true forgiveness, the secret to purifying the heart; Openness, how to embrace your deeper suffering and simpler joys in the manner and spirit of Saint Francis; Response, the way of the Poor Christ, a life made rich through prayer, contemplation, and selfless service; Time, how we enter the state of the timeless divine. You will learn how to use each of these miraculous keys to open the door to the cell within - a sacred inner space of stillness and strength available to you at any time and in any situation - and to transform yourself into a true instrument of peace.

"Whether by design or by chance," Terryl and Fiona Givens write, "we find ourselves in a universe filled with mystery. We encounter appealing arguments for a Divinity that is a childish projection, for prophets as scheming or deluded imposters, and for scripture as so much fabulous fiction. But there is also compelling evidence that a glorious Divinity presides over the cosmos, that His angels are strangers we have entertained unawares, and that His word and will are made manifest through a sacred canon that is never definitively closed."

In The Interior Castle, Carmelite nun, mystic, and patron saint of Spain Teresa of Ávila uses the metaphor of a giant crystal castle to explain her theory of the soul and the various stages it passes through as it progresses towards God. Beginning in the outer rooms, where demons are fought and vices are purged, the soul must reach the inner chambers, where it will enter betrothal and intimate union with God. Prayer is central to the journey, as the soul is guided by its practice and each phase represents a different category of devotion.

Seven years ago, Christian Wiman, a well-known poet and the editor of Poetry magazine, wrote a now-famous essay about having faith in the face of death. My Bright Abyss, composed in the difficult years since and completed in the wake of a bone marrow transplant, is a moving meditation on what a viable contemporary faith - responsive not only to modern thought and science but also to religious tradition - might look like.