Synonyms and related words :
abdomen, anus, appendix, blind gut, bosom, bowels, brain, breast, cecum, center, center of life, colon, core, deepest recesses, duodenum, endocardium, entrails, esoteric reality, foregut, giblets, gizzard, guts, heart, heart of hearts, hindgut, inmost heart, inmost soul, innards, inner, inner landscape, inner life, inner man, inner mechanism, inner nature, inner recess, inner self, inside, insides, interior, interior man, intern, internal, internals, intestine, intrados, inward, inwards, jejunum, kidney, kishkes, large intestine, liver, liver and lights, lung, midgut, nerve center, penetralia, perineum, pump, pylorus, quick, recesses, rectum, secret heart, secret place, secret places, small intestine, soul, spirit, spleen, stomach, ticker, tripes, true being, true inwardness, vermiform appendix, viscera, vital center, vital principle, works