What is foregrounding on interpersonal communication?

This dimension of Jeoffrey Leech is the only literary feature which generally dominates the literary writing. It is claimed that foregrounding is a basic principle of aesthetic communication. It is defined as a conscious or deliberate deviation from the rules of language code or from the accepted conventions of its use which stands out against a background of a normal usage. Leech, in his analysis, says that Thomas uses one of the semantic stylistic devices, that is, metaphor (semantic oddity) in which the linguistic form is given something than its normal or literal interpretation.