Speaking with the “Rio Negro” portal, the young priest acknowledged that his vocation “was born in the missions and among the sick” and that “it’s a gift, a gift from God.”“One simply has to open up to that grace, to be available,” he said.Born in the city of Catriel, at age 7 he began to attend Missionary Childhood (a worldwide organization of Catholic youth) in a poor neighbourhood of his town.That experience — as well as meeting a nun named Nieves — made an impact on his life. He was just a boy when he began to “know Jesus and call him a friend,” Oser recounted.The call to a vocation began to take shape when at age 15 he visited a terminally ill patient with leukaemia at a hospital in the city of Cinco Saltos along with a parish priest who, accompanied by a seminarian, was administering the sacrament of anointing of the sick to the patients.At that time, Father Oser felt that science and medicine were not enough to end people’s suffering.

A priest from where he grew up was the spiritual director who guided him until he was 18 when he decided to begin priestly formation.He first served at the Jesus the Good Shepherd Seminary in Río Cuarto in Córdoba province, and then he transferred to Buenos Aires, where he continued his formation at the St. Peter and St. Paul Patagonian Seminary until 2021.ALSO READ: Catholic Church Flags Off Communications Week