Cognitive linguists emphasize that metaphors provide to aid the knowledge of just one conceptual domain—ordinarily an abstraction like "daily life", "theories" or "Suggestions"—by way of expressions that relate to another, far more common conceptual domain—ordinarily much more concrete, including "journey", "structures" or "food stuff". In his guide In Other Sneakers: https://metafora42074.wikipublicity.com/6661365/the_smart_trick_of_metafora_that_no_one_is_discussing