It may be

“More than love, sex, courtship, and marriage; more than inheritance, ambition, rivalry, or disgrace; more than hatred, betrayal, revenge, or death, orphanhood—the absence of the parent, the frightening yet galvanizing solitude of the child—may be the defining fixation of the novel as a genre, what one might call its primordial motive or matrix, the conditioning psychic reality out of which the form itself develops.” — Terry Castle, “Don’t Pick Up”