I’ve noticed that a lot of 四字熟語 seem to describe things like impregnable fortresses, unassailable walls, or unbeatable defenses. Examples would be 難攻不落, 鉄壁無敵, or 堅忍不抜.
Why does this theme appear so often? Was fortress imagery just really common in Chinese/Japanese history, or is there a deeper reason these became the go-to metaphors for strength and endurance?
I’d love to hear if there’s a cultural or historical explanation behind this!
by AdUnfair558