Br. Sebastian (Joseph) Reale of the Immaculate Conception was born on July 16, 1944, in Cambridge, Massachusetts to parents Sebastian and Alice (nee Murray) Reale and was raised with his two older sisters, Mary and Alice.

On August 1, 1962, Br. Sebastian entered the Discalced Carmelite Novitiate in Waverly, New York and would make his first profession there on July 16, 1965. From 1965 to 1966, he worked as a cook at the minor seminary in Peterborough, New Hampshire - something he continued to enjoy throughout his religious life at various Carmelite monasteries.

On his birthday, July 16, 1970, he made his Solemn Profession in Brookline, Massachusetts. That same year, he began his nursing studies at Boston College, earning his Bachelor of Science in Nursing. He went on to work as a registered nurse at Belleville Hospital in New York City and later at Boston City Hospital in the psychiatric unit. In August 1977, he became a conventual at the Discalced Carmelite Friars Monastery in Brookline later moving with the order to a new location in Brighton, Massachusetts.

A compassionate and dedicated nurse, Br. Sebastian traveled to the Khao-I-Dang Refugee Center (KID) in Thailand in the 1980s where he worked alongside doctors and nurses from across the United States with the International Rescue Committee (IRC). During his time there, he formed many meaningful, lifelong friendships.

In 1996, Br. Sebastian returned to school and earned his Master of Science in Nursing from Lesley University. Soon after, he became a conventual at the monastery’s retreat house in Peterborough, New Hampshire and was called later that year to serve as a member of Our Lady of Mount Carmel Monastery in Washington, DC.

Placed under the Provincial in 2006, he moved to Biddeford, Maine to be closer to family. In his final years, he enjoyed living with his sister, Alice in Kennebunk. After the passing of his sister, Mary in 2022, followed by Alice in 2025, he resided at the Kennebunk Rehabilitation Center and died peacefully at MaineHealth in Biddeford with loving family members by his side.

Br. Sebastian died on March 23, 2026 and is buried at Holyhood Cemetery in West Roxbury, Massachusetts. He was 82 years old at his passing and served as a Discalced Carmelite Friar for 61 years.