This work investigates the origins, spiritual foundations, and global expansion of Mother Teresa’s Missionaries of Charity and the associated Co-workers movement. Kathryn Spink, a long-time associate of the organization, utilizes extensive access to internal records and personal correspondence to document the order's growth. The text presents a detailed account of how a singular vision for serving the destitute evolved into a worldwide network of religious and lay volunteers. It frames the mission as a practical application of theological principles regarding human dignity and divine service.

The text provides a comprehensive, insider-focused account that serves as a primary historical record for those interested in the institutional growth of the Missionaries of Charity. Its detailed documentation offers a clear view of the organizational structure and the spiritual motivations that defined the order's early decades.