"In Pictorial Metaphor in Advertising (1996) . . ., Forceville sets out a theoretical framework for the analysis of pictorial metaphor.. A pictorial, or visual, metaphor occurs when one visual element (tenor/target) is compared to another visual element (vehicle/source) which belongs to a different category or frame of meaning.
What is needed
How do people interpret metaphors such as The lecture was a three-course meal?Lakoff has proposed that figurative expressions are interpreted as instantiations of deep conceptual metaphors, such as IDEAS ARE FOOD.