Consider this matter in the following similitude. A grain of wheat has the air and light of this world enclosed or incorporated in it. This is the mystery of its life, this is its power of growing, by this it has a strong continual tendency of uniting again with that ocean of light and air from whence it came forth, and so it helps to kindle its own vegetable life. On the other hand, that great ocean of light and air, having its own offspring hidden in the heart of the grain, has a perpetual strong tendency to unite and communicate with it again. From this desire of union on both sides the vegetable life arises and all the virtues and powers contained in it.
— William Law