Synonyms and related words :
adytum, ashram, asylum, being, bolt-hole, bones, bosom, breast, cache, cell, center, cloister, concealment, core, corner, cover, covert, coverture, cranny, cubby, cubbyhole, dark corner, deepest recesses, den, dugout, esprit, foxhole, funk hole, guts, heart, heart of hearts, heartstrings, hermitage, hideaway, hideout, hidey hole, hiding, hiding place, hole, holy of holies, inmost heart, inmost soul, inner, inner landscape, inner life, inner man, inner nature, inner recess, inner self, innermost being, inside, interior, interior man, intern, internal, intrados, inward, ivory tower, lair, mew, niche, nook, penetralia, privacy, recess, recesses, refuge, retreat, sanctuary, sanctum, sanctum sanctorum, secret places, soul, spirit, stash, undercovert, viscera, vital center, vitals