David R. Slavitt said this quote

“ He had not been able to see it in himself, but looking at Hungerford, he was able at least to speculate on the possibility that fear, raw, physical fear, had a kind of gift to give, too. Who but the terrified has heard his own heart pounding, listened to his own stertorous breathing, wishing that heart and lungs would be more quiet, and yet learning in their pulsation the lessons of rhythm and metrics? (Anagrams, p. 80) ”