Belief in and reverence for a supernatural power or powers regarded as creator and governor of the universe. A personal or institutionalized system grounded in such belief and worship. The life or condition of a person in a religious order. A set of beliefs, values, and practices based on the teachings of a spiritual leader. A cause, principle, or activity pursued with zeal or conscientious devotion. get religion Informal To become religious or devout. get religion Informal To resolve to end one's immoral behavior.