[2] Every affection has its mate, its consort, so to speak. An affection of natural love has knowledge, one of spiritual love has intelligence, and one of celestial love, wisdom. Without its mate or consort an affection is nothing, but is like esse apart from existere or substance without form, of which nothing can be predicated. Hence there is in every created thing something referable to the marriage of good and truth, as we have shown several times. In beasts it is a marriage of affection and knowledge; the affection is one of natural good, and the knowledge is knowledge of natural truth. [3] Affection and knowledge in beasts act altogether as one. Their affection cannot be raised above their knowledge, nor the knowledge above the affection; if they are raised, they are raised together. Nor have animals a spiritual mind into which, or into the heat and light of which, they can be raised. Thus they have no faculty of understanding or rationality, or faculty of freely willing or liberty, and nothing more than natural affection with its knowledge. Their natural affection is that of finding food and shelter, of propagating, of avoiding and guarding against injury, together with the knowledge needed for this. As this is their kind of existence, they cannot think, "I will this but not that," or "I know this but not that," still less, "I understand this" or "I love that." They are borne along by affection and its knowledge without rationality and liberty. It is not from the natural world that they are borne along so, but from the spiritual world. Nothing can exist in the natural world that does not have its connection with the spiritual world: thence is every cause that accomplishes an effect. On this see also some things below (n. 96). 75. It is otherwise with man, who has affections not only of natural love, but also of spiritual and celestial loves. For man's mind is of three degrees, as was shown in Part III of the treatise _Divine Love and Wisdom._ Man can be raised therefore from natural knowledge into spiritual intelligence and on into celestial wisdom. From the two, intelligence and wisdom, he can look to the Lord, be conjoined with Him, and thereby live to eternity. This elevation as to affection would not be possible did he not from rationality have the power to raise the understanding, and from liberty the power to will this.