BOB ABERNETHY, anchor: Now, an Easter story of faith and hope. Mattie Stepanek is the brilliant, wheelchair-bound Maryland boy with muscular dystrophy who has become a best-selling inspirational poet. Both he and his mother, Jeni Stepanek, suffer from rare but different forms of the disease. Exactly one year ago, Mattie almost died. But -- strongly supported by his mother, who is also in a wheelchair -- Mattie outlived all expectations and, not yet a teenager, he has become an amazingly mature public speaker and authority on life at the edge of death. Deryl Davis reports.

MATTIE STEPANEK: Thank you all for coming out tonight to hear me talk and to have me sign your books.

DERYL DAVIS: Afflicted by a rare and life-threatening form of muscular dystrophy, Mattie spends most of his days in a wheelchair, breathing with the help of a ventilator. But with two books of poetry on the New York Times best-seller list, he does get around.

He's read poetry for Paula Zahn, talked peacemaking with former President Jimmy Carter, and hobnobbed with First Lady Laura Bush. He's received awards for his poetry and his message, which is about faith and hope.

MATTIE: God gives me hope that there is something greater than us, something better and bigger than the here and now, that can help us live.

DAVIS: Mattie came close to death several times last year. Although doctors can't fully explain his recovery, Mattie believes God saved him for a reason.

MATTIE: I feel that God has given me a very special opportunity that I should not let go to waste. I use the gift he has given me.

DAVIS: That gift, of words, has struck a chord with children and adults around the country.

MATTIE: I want to read a poem about hope. "I need a new hope, a hope that reaches for the stars and does not end in violence or war. A hope that finds cures for diseases."

DAVIS: At book signings, Mattie talks about his struggle with disease, his desire to be a peacemaker, and his heroes -- one of whom is usually seated behind him.

MATTIE: Another big influence who deserves a round of applause is my mom. She keeps my spirit up.

DAVIS: Jeni Stepanek, a divorcee, has already lost three children to Mattie's disease, which attacks the respiratory system. The oldest child, whom Mattie knew, lived to be four. Jeni watched one of them struggle for two years.

JENI STEPANEK: I knew he was going to die. I knew it. And I rocked him and held him the last two and a half hours of his life. I heard his last breath. I remember that. I remember breathing in as deeply as I could so that I got his last breath.

DAVIS: Jeni learned that she was the carrier of the disease only after being diagnosed with it herself. Her children's deaths precipitated a spiritual crisis.

JENI: I was in so much pain that I couldn't even turn to God. I did not feel God in my life. I felt nothingness. I felt despair. No hope. And I just could not understand why this was happening to me, why, again and again.

DAVIS: Today, Jeni says the question is different: not why tragedy happens, but how to go on living with it. A lifelong Roman Catholic, she says the rituals of the Church helped her cope with the loss of her children.

JENI: The fact that I was in the tradition and going to church, and saying the prayers, and doing what I needed to do slowly, as you move further and further away from the wound -- the severing of your children from your life -- as it begins to heal and scar over. You're doing these traditional things and you begin to feel the spirituality.