This suggests an expansive speaker with vast ideas; one who embraces the world, makes perorations rather than utterances, and generally waves his arms about as he speaks.
Miller is a master of refreshing metaphors and similes.
‘He always talked against a landscape, like a protagonist in a lost world.’
On another expansive speaker, one who might have benefitted from reining it in a bit, see Vasily Grossman.
Source: The Colossus of Maroussi, Henry Miller (New York: New Directions Books, 2010 (1941)), p. 28
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