Sr. Gianna Casino

I’ll never forget the first time I saw a nun. I was five years old, my eyes wide with curiosity as I tugged on my mother’s skirt. “Mama, why is she wearing those clothes?” I asked, pointing at the woman in the black and white habit.

My mother’s response ignited a spark within that would shape my entire life: “She’s married to Jesus.” From that moment, Christ became my first love. I thought, “I want to marry Jesus too.” As I grew older, my desire blossomed, as well as the desire to heal. It felt natural to pursue medicine in college, but my true calling revealed itself during a pivotal hour of adoration. In the silence, I heard His voice clear as day: “Be crucified with me.” I knew He was asking me to give my life to Him completely.

My name is now Sr. Mary Gianna Casino, a missionary of the Leaven of the Immaculate Heart of Mary. I went from being a college breakdancer/K-POP dancer to becoming a Catholic sister, children’s author, and psychotherapist. My journey has led me down many paths – each deepened my understanding of the person and strengthened my commitment to Christ.

I’ve taught students across the globe, reinforcing my belief in the power of true Catholic formation - what my sisters bring to the world. God put it on my heart to expand ways to help souls through further studies in mental health.

Shockingly to me, this work garnered attention from media outlets like ABC news, EWTN, and the New York Times, but my focus remains on the souls I can touch daily through words, actions, and above all, prayer. Everything has been the work of the Holy Spirit.

My children's books are just a beginning. The Puffel series, inspired by Pope St. John Paul II's Theology of the Body, has been a way for parents and teachers to nurture love in our deepest identity. Every story and book I write has an underlying theme which is a part of the mystery of suffering. The worst wounds are the ones that hurt so much that they hurt our identity. No matter what trials life brings, I want souls to see that they are above all, beloved. My perspective on suffering truly shifted after I lost my Dad suddenly 3 years ago at age 27. My mom was diagnosed with terminal cancer shortly after. To walk with others in their mystery of loss, grief, and healing resonates deeply with my calling. I strive to stand with Mary at the foot of the Cross.

Reflecting on my journey, I'm filled with gratitude for that little girl who first marveled at a nun's habit. She could never have imagined the beautiful life that awaited her, hand in hand with her eternal love, Jesus Christ.