Mother Teresa rarely mentioned her childhood, but she once said that when she joined a Catholic children's charity at the age of 12, she felt that her future career was to help the poor. /kloc-When she was 0/5 years old, she and her sister decided to go to India for missionary training. 1, she entered the loretto order in Ireland and received missionary training in Dublin and Darjeeling. Three semesters later, Mother Teresa officially arrived in Calcutta, India, and took a teaching position in St. Mary loretto Monastery Middle School, mainly teaching geography. 193 1 year, Mother Teresa officially became a nun. 1937 May, she decided to become a nun for life, and changed her name to Mother Teresa according to the name and spirit of St. Theresa, the most famous nun in France19th century. In the early 1940s, Mother Teresa served as the principal of St. Mary loretto convent middle school. But at that time, the gap between the rich and the poor was very wide and the school was peaceful. But outside the school, there were helpless lepers, beggars and street children. 1September, 946 10, Mother Teresa spent a year in a convent in Darjeeling, India, and felt strongly that she wanted to serve the poor. After returning to Calcutta, she asked the local archbishop to leave the school and monastery, but she never got permission.