The concept of insanity, as described in popular sayings, refers to the repetitive action of engaging in the same behavior while anticipating different outcomes. This notion suggests a disconnect between actions and expected results, highlighting the futility of such patterns. The saying serves as a warning against the complacency of repeating ineffective strategies in life.

In Linda Lael Miller's "A Creed In Stone Creek," this idea serves as a backdrop for characters who must confront their own repetitive behaviors. By recognizing their cycles of action, they can seek change and growth, ultimately discovering the importance of adapting to new circumstances rather than clinging to the past.