He who wants to be an imitator of Christ, so that he too may be called a son of God, born of the Spirit, must above all bear courageously and patiently the afflictions he encounters, whether these be bodily illnesses, slander and vilification from men, or attacks from the unseen spirits. God in His providence allows souls to be tested by various afflictions of this kind, so that it may be revealed which of them truly loves Him.
St Symeon Metaphrastis