The document discusses the origin and development of Katherine Kolcaba's Theory of Comfort. Kolcaba developed the theory based on her experience with her brother's cancer and the comforting actions of nurses. She conducted a concept analysis that examined literature from several disciplines. The theory proposes three types of comfort - relief, ease, and transcendence - within four contexts of human experience. Major influences on the theory included the works of Orlando, Henderson, Paterson and Zderad. The theory provides a useful framework for assessing and meeting patient needs across physical, psycho-spiritual, sociocultural, and environmental domains.