Mother Teresa’s twenty years in Loreto were filled with profound happiness. Noted for her charity, unselfishness and courage, her capacity for hard work and a natural talent for organization, she lived out her consecration to Jesus, in the midst of her companions, with fidelity and joy.

On September 10, 1946 during a train ride from Calcutta to Darjeeling for her annual retreat, Mother Teresa received her “inspiration, her call within a call.” On that day, in a way she would never explain, Jesus’ thirst for love and for souls took hold of her heart and the desire to satiate His thirst became the driving force of her life.

By means of interior locutions and visions, Jesus revealed to her the desire of His heart for “victims of love” who would “radiate His love on souls.” “Come be My light,” He begged her. “I cannot go alone.”

Jesus revealed His pain at the neglect of the poor, His sorrow at their ignorance of Him and His longing for their love. He asked Mother Teresa to establish a religious community, Missionaries of Charity, dedicated to the service of the poorest of the poor.

Nearly two years of testing and discernment passed before Mother Teresa received permission to begin. On August 17, 1948, she dressed for the first time in a white, blue-bordered sari and passed through the gates of her beloved Loreto convent to enter the world of the poor.

After a short course with the Medical Mission Sisters in Patna, Mother Teresa returned to Calcutta and found temporary lodging with the Little Sisters of the Poor. On December 21, she went for the first time to the slums. She visited families, washed the sores of some children, cared for an old man lying sick on the road and nursed a woman dying of hunger and tuberculosis. She started each day with communion then went out, rosary in her hand, to find and serve Him amongst “the unwanted, the unloved, the uncared for.” After some months, she was joined, one by one, by her former students.

On October 7, 1950 the new congregation of the Missionaries of Charity was officially established in the Archdiocese of Calcutta. By the early 1960s, Mother Teresa began to send her Sisters to other parts of India. The Decree of Praise granted to the Congregation by Pope Paul VI in February 1965 encouraged her to open a house in Venezuela. It was soon followed by foundations in Rome and Tanzania and, eventually, on every continent. Starting in 1980 and continuing through the 1990s, Mother Teresa opened houses in almost all of the communist countries, including the former Soviet Union, Albania and Cuba.

In spite of increasingly severe health problems towards the end of her life, Mother Teresa continued to govern her Society and respond to the needs of the poor and the Church. By 1997, Mother Teresa’s Sisters numbered nearly 4,000 members and were established in 610 foundations in 123 countries of the world. In March 1997 she blessed her newly-elected successor as Superior General of the Missionaries of Charity and then made one more trip abroad. After meeting Pope John Paul II for the last time, she returned to Calcutta and spent her final weeks receiving visitors and instructing her Sisters.