Insane from being imprisoned in his instrument

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But like the musician in Bosch's Garden of Earthly Delights, who is caught in his harp, his arms outstretched as though dead or passed out, played by the song that sends him into ecstasy, insane from being imprisoned in his instrument, that is, in the body of a voice of the other - the poet, too, is robbed by that excess which names but remains unnameable.

- Michel de Certeau, Chapter 6, Mystic Speech, Heterologies, 1986

Thanks, A.A.