774. The Lord's presence is unceasing with every man, both the evil and the good, for without His presence no man lives; but His Coming is only to those who receive Him, who are such as believe on Him and keep His commandments. The Lord's unceasing presence causes man to become rational, and gives him the ability to become spiritual. This is effected by the light that goes forth from the Lord as the sun in the spiritual world, and that man receives in his understanding; that light is truth, and by means of it man has rationality. But the Lord's coming is to him who joins heat with that light, that is, love with truth; for the heat that goes forth from that same sun is love to God and love toward the neighbor. The mere presence of the Lord, and the consequent enlightenment of the understanding, may be likened to presence of solar light in the world; unless this light is joined with heat all things on earth become desolate. But the coming of the Lord may be likened to the coming of heat, which takes place in spring; because heat then joins itself with light, the earth is softened, and seeds sprout and bring forth fruit. Such is the parallelism between the spiritual things which are the environment of man's spirit, and the natural things which are the environment of his body.