The speaker describes an intense auditory experience that is distinct from any prior sensations they've encountered. Unlike the buzzing sound of Craigh na Dun, this new sound resembles a profound hum, similar to the resonance produced by a large bell. The impact of the sound is visceral, resonating within the speaker's body and creating a physical sensation that travels through their bones and spine.

This struggle to articulate their experience highlights the overwhelming nature of what they are hearing. The urgency of their plea—"Don't you hear?"—implies a shared connection or an important message that the speaker fears may not be recognized by others. The powerful imagery evokes a sense of transformation brought about by the sound, emphasizing its significance in the narrative.