Literary notes about echo (AI summary)
The word “echo” in literature is multifaceted, functioning both as a literal auditory phenomenon and as a powerful metaphor for memory, emotion, and reflection. Authors often invoke an echo to signal the reverberation of sound in vast, empty spaces or to illustrate the lingering impact of past events and feelings. For instance, a cave’s reverberation may suggest both physical emptiness and the symbolic return of long-forgotten thoughts ([1], [2]), while a character’s inner distress can be underscored by a voice that echoes their sorrow or regret ([3], [4]). At the same time, the term can bridge the gap between the natural world and human experience, carrying historical and mythological connotations that enrich a narrative’s depth ([5], [6]). This layered usage transforms “echo” from a simple repetition of sound into a resonant emblem of both external and internal worlds.