low stage of progress, and follow their own nature closely in the intercourse and dealings which they have with God, because the gold of their spirit… - John of the Cross

3. To prove the truth of the first reason, we take for granted a principle of the philosopher, namely, the more clear and evident divine things are, the more dark and hidden they are to the soul naturally. Thus the more clear the light the more does it blind the eyes of the owl,3 and the stronger the sun’s rays the more it blinds the visual organs; overcoming them, by reason of their weakness, and depriving them of the power of seeing. So the divine light of contemplation, when it beats on the soul, not yet perfectly enlightened, causes spiritual darkness, because it not only surpasses its strength, but because it blinds it and deprives it of its natural perceptions.

O killing north wind, cease! Come, south wind, that awakenest love! Blow through my garden, And let its odours flow, And the Beloved shall feed among the flowers. ~ 17

Not all the faculties and senses have to be employed in things, but only those that are required; as for the others, leave them unoccupied for God.