At first...
At first, weak impressions related to particulars (as opposed to universals) emerge in the soul, such as impressions of touch and other outward senses, moving from the lower to the higher. Following that, the inward perceptions also arise in it. However, all its faculties exist only at a level of potentiality, and they do not grow without proper stimulation.
For instance, if the base kind of faculties come to dominate it, it becomes disposed to ugliness and evil, for its inner powers, such as shahwah (lust), ghadhab (anger), etc., impel it towards sin, licentiousness, aggression and tyranny. After following them for some time it grows into a strange monster and a highly grotesque devil.
However, since the grace and mercy of God Almighty have been accompanying the Children of Adam since eternity, He bestowed upon them two educators and teachers which are like two wings with which they can fly from the depths of ignorance, defectiveness, ugliness and wretchedness to the heights of knowledge, perfection; beauty and felicity, and deliver themselves from the narrow valley of nature to reach the expansive and open horizons of the realms of the spirit ( malakut ) .
The first of these is the faculty of intellect and discernment, which is the inner teacher; and the second, the outward teacher, is represented by the prophets and the divine guides who shove the path of felicity as distinct from the ways of wretchedness. None of these two can singly achieve this end without the other. For the human intellect by itself can neither identify the paths of felicity and wretchedness nor find the way to the hidden world and the realm of Hereafterly existence.
Similarly, the guidance of the prophets cannot be effective without the exercise of the discerning faculties of the intellect. Thus God, the Beneficent and the Sublime, gave them these two educators so that through them all the potentialities and hidden faculties and capacities, latent in the human soul, should be realized and actualized.