Foreshadowing is a literary device in which a writer gives an advance hint of what is to come later in the story. Foreshadowing often appears at the beginning of a story, or a chapter, and helps the reader develop expectations about the coming events.
A valediction is an expression used to say farewell, especially a word or phrase used to end a letter or message
Amplification repeats a word or expression for emphasis, often using additional adjectives to clarify the meaning. For example: "Love, real love, takes time".