Carnality may determine whether a memoir’s any good, but interiority—that kingdom the camera never captures—makes a book rereadable. By rereadable, translate: great. Your connection to most authors usually rests (Nabokov and a few others aside) in how you may identify with them. Mainly, the better memoirist organizes a life story around that aforementioned inner enemy—a psychic struggle against herself that works like a thread or plot engine.

Interiority moves us through the magic realms of time and truth, hope and fantasy, memory, feelings, ideas, worries. Emotions you can’t show carnally are told. Whenever a writer gets reflective about how she feels or complains or celebrates or plots or judges, she moves inside herself to where things matter and mean.

Early on in a childhood tale, an author may render consciousness awakening—that enduring, often-trivial first memory, through which a narrator blinks into being. Nabokov made such a moment so singular, its machinery almost speaks to or sparks my own such arrival, as if he described something I, too, had felt but never been able to articulate: “I see the awakening of consciousness as a series of spaced flashes, with the intervals between them gradually diminishing until bright blocks of perception are formed, affording memory a slippery hold.” As you watch the narrator feel around the edges of consciousness for its “slippery hold”—probing for what really went down—you enter a singular set of psychic perceptions. But craving that “hold” or permanence in what’s past is Nabokov’s inner enemy.

Even a writer with gargantuan external enemies must face off with himself over a book’s course. Otherwise, why write in first person at all?

The split self or inner conflict must manifest on the first pages and form the book’s thrust or through line—some journey toward the self’s overhaul by book’s end. However random or episodic a book seems, a blazing psychic struggle holds it together, either thematically or in the way a plot would keep a novel rolling forward. Often the inner enemy dovetails with the writer’s own emotional investment in the work at hand. Why is she driven to tell the tale? Usually it’s to go back and recover some lost aspect of the past so it can be integrated into current identity.