(adjective) of, relating to, or affecting the body especially as distinguished from the germplasm or the psyche / (adjective) of or relating to the wall of the body; parietal / (noun) one of the cells of the body that compose the tissues, organs, and parts of that individual other than the germ cells
another suggestion that somatic costs and monetary compensation do not balance
referring to a quote of DFW's dismissing the idea of being paid to undergo pain (i.e., taking an advance on a book)