Final answer:
Aylmer's physical appearance contrasts with that of another character by symbolizing the spiritual element compared to the latter's representation of physical nature. These descriptions underscore the themes of intellect versus physicality and the pursuit of perfection in humanity.
Step-by-step explanation:
The physical appearance of Aylmer contrasts with that of another character, who seems to symbolize man's physical nature with his vast strength, shaggy hair, his smoky aspect, and the indescribable earthiness that encrusted him. In contrast, Aylmer is described as having a slender figure, and pale, intellectual face, representing the spiritual element. The descriptions of their appearances symbolize the dichotomy between the physical and the spiritual realms of human existence. Aylmer's appearance, paired with his obsession with perfection, signifies the intellectual pursuits and ambitions of man, whereas the other character's earthy qualities signify the natural, primal, and perhaps more flawed side of humanity.