2. What the life of man is, no one knows unless he knows that it is love. If this is not known, one person may believe that man's life is nothing but perceiving with the senses and acting, and another that it is merely thinking; and yet thought is the first effect of life, and sensation and action are the second effect of life. Thought is here said to be the first effect of life, yet there is thought which is interior and more interior, also exterior and more exterior. What is actually the first effect of life is inmost thought, which is the perception of ends. But of all this hereafter, when the degrees of life are considered. 3. Some idea of love, as being the life of man, may be had from the sun's heat in the world. This heat is well known to be the common life, as it were, of all the vegetations of the earth. For by virtue of heat, coming forth in springtime, plants of every kind rise from the ground, deck themselves with leaves, then with blossoms, and finally with fruits, and thus, in a sense, live. But when, in the time of autumn and winter, heat withdraws, the plants are stripped of these signs of their life, and they wither. So it is with love in man; for heat and love mutually correspond. Therefore love also is warm. 4. GOD ALONE, CONSEQUENTLY THE LORD, IS LOVE ITSELF, BECAUSE HE IS LIFE ITSELF AND ANGELS AND MEN ARE RECIPIENTS OF LIFE. This will be fully shown in treatises on Divine Providence and on Life; it is sufficient here to say that the Lord, who is the God of the universe, is uncreate and infinite, whereas man and angel are created and finite. And because the Lord is uncreate and infinite, He is Being [Esse] itself, which is called "Jehovah," and Life itself, or Life in itself. From the uncreate, the infinite, Being itself and Life itself, no one can be created immediately, because the Divine is one and indivisible; but their creation must be out of things created and finited, and so formed that the Divine can be in them. Because men and angels are such, they are recipients of life. Consequently, if any man suffers himself to be so far misled as to think that he is not a recipient of life but is Life, he cannot be withheld from the thought that he is God. A man's feeling as if he were life, and therefore believing himself to be so, arises from fallacy; for the principal cause is not perceived in the instrumental cause otherwise than as one with it. That the Lord is Life in Himself, He Himself teaches in John: As the Father hath life in Himself, so also hath He given to the Son to have life in Himself (5:26) He declares also that He is Life itself (John 11:25; 14:6). Now since life and love are one (as is apparent from what has been said above, n. 1, 2), it follows that the Lord, because He is Life itself, is Love itself.