189. We speak of a woman feeling the delights of her heat in her husband's light. But this means that a woman feels the delights of her love in her husband's wisdom, because wisdom serves to receive it, and where love finds something to match itself, it experiences its pleasure and delights. It does not mean that heat takes pleasure with light outside the forms, but inside them. There spiritual heat takes all the more pleasure with spiritual light, because these forms derive their life from wisdom and love, and so are capable of receiving them.
This can up to a point be illustrated from the play, as it is called, of heat with light in vegetation. Outwardly it is merely a simple combination of heat and light; but inwardly it is like them playing with each other, because heat and light are there in forms capable of receiving them; for heat and light pass through astonishingly circuitous paths, and in the inmost regions yearn to produce benefits; they also spread their charms widely into the air, which is filled with fragrance. There is an even more delightful play of spiritual heat with spiritual light in human forms; here the heat is conjugial love and the light is wisdom.