Mother Teresa borne to sainthood by complex, mysterious process

(Story repeats, adding reference to Sunday's canonization.) By Philip Pullella VATICAN CITY (Reuters) - The canonization of Mother Teresa of Calcutta marked the culmination of a process - sometimes called "the saint-making machine" - that is long, complex, expensive, opaque and often contentious. The Catholic Church posthumously confers sainthood on people considered so holy during their lives that they are now believed to be with God and can intercede with him to perform miracles. Such is the status of the nun acclaimed for her work in the slums of the Indian city now known as Kolkata, who Pope Francis on Sunday declared a saint in front of an estimated 120,000 pilgrims.