First-class relics are fragments of the body of the saint, such as bone, flesh, or hair. Fain said he thinks the relics of Zelie and Louis are pieces of bone.
Anything touched to a first-class relic of a saint, like a rosary or a holy card, becomes a third-class relic. Fain added, "I think that's pretty exciting in itself."
Before they were married, both Louis and Zelie desired religious vocations. But both were turned away - Louis was rejected from seminary because he didn't know Latin, and Zelie from a religious community because she had poor health. Louis then became a watchmaker, and Zelie a lacemaker. They had nine children, only five of whom survived childhood.
Zelie died from cancer at the age of 46, leaving Louis to care for the children alone, including Therese, who was four at the time. Louis died in 1894, after suffering two strokes in 1889.
The couple's desire for holiness despite being turned down from religious vocations can be observed in the way they lived their family life, Fain said, and in a way, their home became "like a small convent in a lot of ways."
"It's just obvious that that's what God's intention was for their vocation was to be a married couple who shared their family life with their children," Fain said.
Sts. Louis and Zelie were canonized Oct. 18, 2015 by Pope Francis - the first-ever married couple to be canonized together. Another married couple, Bl. Luigi and Maria Beltrame Quattrocchi, were beatified together in October 2001.
Fain said he hopes the relics and life of the Martin family can show his parishioners that "spirituality doesn't have to be a complicated thing. A lot of people are overwhelmed by the great saints and sometimes have a hard time relating to them, but St. Therese is one that I think everyone can relate to."
He said he also hoped that couples were inspired to see their marriages as holy vocations as well.
"I think a lot of times married couples don't see themselves as living a vocation. When they think of vocations, they think of priests or deacons or religious men and women, but they don't really consider being married a religious vocation," Fain said.
"The state of marriage is definitely in crisis. It's in crisis in our country, but it's also in crisis in the Church itself. I think by looking at a couple such as Louis and Zélie and by learning from their merits and example...again that it doesn't have to be an extraordinary thing. It can just be living a good saintly life in a simple way. That's ultimately how they made it to heaven. I think that can be a great hope for married couples," he said.
Fain added that Bishop Boyea plans to visit the parish on Corpus Christi to bless people individually with the relic. The relics can also be removed from their display case by request for those hoping to touch rosaries, holy cards, or other objects to the relics.
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