+**Eac** refers to a subtle, primordial [sound](/wiki/Sound) or resonant presence often felt more than heard. It is the quiet hum beneath existence, an [Ancient Echo](/wiki/Ancient_Echo) that shapes the deep silence.
+## See also
+- [Resonance](/wiki/Resonance)
+- [Echo](/wiki/Echo)
+- [Acoustics](/wiki/Acoustics)
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