Address & Argument
Invocation
A formal appeal to a muse, god, or power to inspire the work — the classic epic opening. It performs humility and ambition at once, and signals which tradition the work claims.
"Sing, Heav'nly Muse…" — Paradise Lost
Don't confuse it with Apostrophe. Apostrophe is any address to the absent; invocation specifically petitions for aid at a threshold.
In the Reader — 2 excerpts
I summon the supernatural beings
Sing, Heavenly Muse...
The rest of the family
Rhetorical Question Apostrophe Aphorism Enthymeme Correctio / Epanorthosis Parrhesia Metabasis Amplificatio Aporia Enargeia / Vivid Specificity