308. It must be grasped that there proceeds constantly from the Lord a Divine sphere of heavenly love towards all who embrace the teaching of His church, and who, just as children in the world obey their father and mother, obey Him, are attached to Him, and seek food, that is, instruction from Him. This heavenly sphere is the origin of the natural sphere of love towards infants and children. This is extremely universal, affecting not only human beings but also birds and beasts, even down to snakes; and not only animate creatures, but even inanimate objects. But the Lord, in order to work on these as He does on spiritual things, created the sun to be a sort of father in the natural world, and the earth to be a sort of mother. For the sun is so to speak the common father, and the earth the common mother, from whose marriage spring all the products of germination which adorn the earth's surface. The action of that heavenly sphere on the natural world produces those wonderful developments of plants from seed to fruit and to new seeds. That too is why there are many kinds of plants which by day turn their faces, so to speak, towards the sun, and turn them away when the sun sets. That too is why there are flowers which open as the sun rises and close as it sets. That too is why song birds sing sweetly in the early morning, and likewise when they have been fed by mother earth. So it is that all these things honour their father and their mother. All of these occurrences are evidence that the Lord, by means of the sun and the earth in the natural world, provides all necessities for living creatures and for inanimate matter. That is why we read in the Psalms of David: