sense-effects

Thus, although the soul have a divine nature (or “being”), though she originate in the intelligible world, she enters into a body. Being a lower divinity, she descends here below by a voluntary inclination, for the purpose of developing her power, and to adorn what is below her. If she flee promptly from here below, she does not need to regret having become acquainted with evil, and knowing the nature of vice, nor having had the opportunity of manifesting her faculties, and to manifest her activities and deeds. Indeed, the faculties of the soul would be useless if they slumbered continuously in incorporeal being without ever becoming actualized. The soul herself would ignore what she possesses if her faculties did not manifest by procession, for everywhere it is the actualization that manifests the potentiality. Otherwise, the latter would be completely hidden and obscured; or rather, it would not really exist, and would not possess any reality. It is the variety of sense-effects which illustrates the greatness of the intelligible principle, whose nature publishes itself by the beauty of its works. [Ennead IV,8 (6) 5]