How does Equiano feels at the beginning of the text and why

Equiano begins his Narrative by acknowledging how memoir writers often must defend themselves against claims of vanity. Further, people expect memoirs to have dramatic events and great personages if they are to be interesting. Equiano apologizes that he is "neither a saint, a hero, nor a tyrant;" he is merely lucky enough to have been favored by Heaven, which he believes has blessed him in all the events of his life. He hopes that his work, even if less than scintillating, will serve the purpose of helping his enslaved brethren.