Note 337 — CANTO THE THIRD.
Reading edition
[There can be no doubt that Byron borrowed this metaphor from the famous passage in Coleridge's Christabel (ii. 408-426), which he afterwards prefixed as a motto to Fare Thee Well.
The latter half of the quotation runs thus—
"But never either found another To free the hollow heart from paining— They stood aloof, the scars remaining, Like cliffs which had been rent asunder; A dreary sea now flows between, But neither heat, nor frost, nor thunder, Shall wholly do away, I ween, The marks of that which once had been."]