Father Nathan Castle, O.P.

“My ministry is helping people receive love, magnify love, and give love.”


Father Nathan Castle, O.P. is a Catholic priest, author, retreat leader, speaker, and host of The Joyful Friar Podcast. His ministry explores faith, hope, spirituality, grief, and the afterlife, helping people live with love and joyful hope.

Calendar of Upcoming Events

Now On Audible

A Catholic Priest Explores the Interrupted Death Process

Father Nathan Castle, O.P., explores interrupted death experiences and their impacts on our lives. Afterlife, Interrupted Book 3: Please Let Me Explain emphasizes the power of these life-altering examples to make us more conscious, connected, and loving.

Father Nathan dispels misconceptions about deceased loved ones being stuck and provides support for those navigating grief, emphasizing the possibility of moving forward with peace. Now on Audible. Learn more.

Bearing & Becoming the Christ Advent Retreat

In-Person Retreat November 21, 2026

Advent calls us to focus on conception, inner growth, and new birth.

 

To “give birth” to Jesus every Advent is to let His divine life take deeper root in you, transforming you into a living sign of God’s presence in the world and building up His kingdom of love, joy, and peace within and outwardly.
 
Join us, and together we will ponder what is stirring in us and what we will give this Christmas season.
 
Register by calling 📞☎️📱520-751-4235
 
November 21, 2026
8:00 am – 12:00 pm
 
Corpus Christi Catholic Church
300 N. Tangque Verde Loop
Tucson, Arizona 85748

All Saints' and All Souls' Day Reflections on Facebook

Join us on Facebook

Join us on Father Nathan Castle’s Facebook Page throughout November for daily All Saints’ and All Souls’ Day Reflections from friends, prayer partners and more! Facebook

Changed, Not Ended Continuing to Love Those Who Have Died Online Retreat

Online Retreat Self-Paced

Are you carrying the weight of grief, wondering about your departed loved ones?

 

Join us for an uplifting spiritual retreat at your own pace with Father Nathan Castle, OP, as he dives into the Gospel of John to unpack the powerful theological truth: Changed, Not Ended. 
 
✨ What to Expect:
  • Deep Theological Insights: Discover a practical exploration of how love transcends bodily death. 
  • Comfort & Healing: Shift your perspective from grief to hope, realizing death is merely a transition, not a final conclusion. Both grief and joy can coexist.
  • Stories of Hope: Drawing from his popular book series, Afterlife, Interrupted, Father Nathan shares stories of souls who have transitioned, helping you visualize how your loved ones are transformed into eternity.
Find comfort, insight, and the reassurance that love never ends.  

Befriending the Angels and Saints Retreat

In-Person Retreat January 29th - 31st, 2027

Join Father Nathan Castle, OP, in the stunning Sonoran Desert of Tucson, Arizona, at the Redemptorist Renewal Center, for a 3-day retreat, “Befriending the Angels & Saints.” 

This unique spiritual retreat is designed to: 

  • Engage your imagination.
  • Protect your peace.
  • Reconnect you with the Holy Ones.

Our journey begins on Friday with a communal dinner, followed by Father Nathan guiding you into the sanctuary of your imagination using the wisdom of Thomas Aquinas and Aristotle. Learn how to silence your inner taskmaster through the Compline prayer tradition.

On Saturday, enter into a deeper sacred space through moments of introspection, contemplation of unitive consciousness, shifting from isolation to unitive peace, and connection with spiritual companions.

 

On Sunday, we’ll celebrate a private Mass and a prayerful culmination of the retreat.

 

Reservations are limited: Includes a two-night stay from Friday to Sunday, along with six meals. Single occupancy: $490, Double occupancy: $980.

Register by emailing: info@nathan-castle.com

Scroll to Top