Pope’s “Grace beyond the Reach of Art” is not an irrational, inexplicable poetic effect, as critics often assume, but an essential, vitalizing illusion: a seemingly incomprehensible deviation from a norm of expectation that proves harmonious and coherent in the context of a work’s overall design. Poetry imitates Nature, and rules are “Nature methodiz’d,” but rules are incomplete formalizations of Nature’s order that gain systematic coherence only in relation to the ends of specific poems. Thus, grace breaks rules yet conforms to Nature; its aberrance is a function of the limitations that readers necessarily have before they arrive at aesthetic comprehension. Analyses of Pope’s “Preface to the Iliad,” Epistle to Burlington, and Essay on Man show that the movement from initial confusion to final understanding that informs grace is also central to his perception of Homer’s art, his theory of landscape design, and his conception of cosmic order.