The Action of the Angels on Man

The Action of the Angels on Man — St. Thomas Aquinas asks: Whether an angel can enlighten man?; Whether the angels can change the will of man?; Whether an angel can change man's imagination?; Whether an angel can change the human senses?.

We now consider the action of the angels on man, and inquire: (1) How far they can change them by their own natural power; (2) How they are sent by God to the ministry of men; (3) How they guard and protect men.

Under the first head there are four points of inquiry:

Article 1: Whether an angel can enlighten man?

Dionysius says (Coel. Hier. iv) that the revelation of Divine things reaches men through the ministry of the angels. But such revelation is an enlightenment as we have stated (; ). Therefore men are enlightened by the angels.

Since the order of Divine Providence disposes that lower things be subject to the actions of higher, as explained above (); as the inferior angels are enlightened by the superior, so men, who are inferior to the angels, are enlightened by them.

The modes of each of these kinds of enlightenment are in one way alike and in another way unlike. For, as was shown above (), the enlightenment which consists in making known Divine truth has two functions; namely, according as the inferior intellect is strengthened by the action of the superior intellect, and according as the intelligible species which are in the superior intellect are proposed to the inferior so as to be grasped thereby. This takes place in the angels when the superior angel divides his universal concept of the truth according to the capacity of the inferior angel, as explained above ().

The human intellect, however, cannot grasp the universal truth itself unveiled; because its nature requires it to understand by turning to the phantasms, as above explained (). So the angels propose the intelligible truth to men under the similitudes of sensible things, according to what Dionysius says (Coel. Hier. i), that, "It is impossible for the divine ray to shine on us, otherwise than shrouded by the variety of the sacred veils." On the other hand, the human intellect as the inferior, is strengthened by the action of the angelic intellect. And in these two ways man is enlightened by an angel.

Article 2: Whether the angels can change the will of man?

To change the will belongs to God alone, according to Prov. 21:1: "The heart of the king is in the hand of the Lord, whithersoever He will He shall turn it."

The will can be changed in two ways. First, from within; in which way, since the movement of the will is nothing but the inclination of the will to the thing willed, God alone can thus change the will, because He gives the power of such an inclination to the intellectual nature. For as the natural inclination is from God alone Who gives the nature, so the inclination of the will is from God alone, Who causes the will.

Secondly, the will is moved from without. As regards an angel, this can be only in one way---by the good apprehended by the intellect. Hence in as far as anyone may be the cause why anything be apprehended as an appetible good, so far does he move the will. In this way also God alone can move the will efficaciously; but an angel and man move the will by way of persuasion, as above explained ().

In addition to this mode the human will can be moved from without in another way; namely, by the passion residing in the sensitive appetite: thus by concupiscence or anger the will is inclined to will something. In this manner the angels, as being able to rouse these passions, can move the will, not however by necessity, for the will ever remains free to consent to, or to resist, the passion.

Article 3: Whether an angel can change man's imagination?

Those things which are seen in dreams are seen by imaginative vision. But the angels reveal things in dreams, as appears from Mat. 1:20;[2]:13,[19] in regard to the angel who appeared to Joseph in dreams. Therefore an angel can move the imagination.

Both a good and a bad angel by their own natural power can move the human imagination. This may be explained as follows. For it was said above (), that corporeal nature obeys the angel as regards local movement, so that whatever can be caused by the local movement of bodies is subject to the natural power of the angels. Now it is manifest that imaginative apparitions are sometimes caused in us by the local movement of animal spirits and humors. Hence Aristotle says (De Somn. et Vigil.) [*De Insomniis iii.], when assigning the cause of visions in dreams, that "when an animal sleeps, the blood descends in abundance to the sensitive principle, and movements descend with it," that is, the impressions left from the movements are preserved in the animal spirits, "and move the sensitive principle"; so that a certain appearance ensues, as if the sensitive principle were being then changed by the external objects themselves. Indeed, the commotion of the spirits and humors may be so great that such appearances may even occur to those who are awake, as is seen in mad people, and the like. So, as this happens by a natural disturbance of the humors, and sometimes also by the will of man who voluntarily imagines what he previously experienced, so also the same may be done by the power of a good or a bad angel, sometimes with alienation from the bodily senses, sometimes without such alienation.

Article 4: Whether an angel can change the human senses?

The angels who overturned Sodom, "struck the people of Sodom with blindness or {aorasia}, so that they could not find the door" (Gn. 19:11). [*It is worth noting that these are the only two passages in the Greek version where the word {aorasia} appears. It expresses, in fact, the effect produced on the people of Sodom---namely, dazzling (French version, "eblouissement"), which the Latin "caecitas" (blindness) does not necessarily imply.] The same is recorded of the Syrians whom Eliseus led into Samaria (4 Kings 6:18).

The senses may be changed in a twofold manner; from without, as when affected by the sensible object: and from within, for we see that the senses are changed when the spirits and humors are disturbed; as for example, a sick man's tongue, charged with choleric humor, tastes everything as bitter, and the like with the other senses. Now an angel, by his natural power, can work a change in the senses both ways. For an angel can offer the senses a sensible object from without, formed by nature or by the angel himself, as when he assumes a body, as we have said above (). Likewise he can move the spirits and humors from within, as above remarked, whereby the senses are changed in various ways.