9473. Oil for the luminary. That this signifies the internal good which is in mutual love and in charity, is evident from the signification of "oil," as being the good of love (see n. 886, 4582, 4638); and from the signification of "the luminary," as being mutual love and charity. That "the luminary" denotes mutual love, is from its flame, by which this love is signified; and that it denotes charity, is from the heat and light from it; for spiritual heat is the good of charity, and spiritual light is the truth of faith.
 It shall here be briefly stated what is meant by the internal good in mutual love, and in charity. Nothing comes forth from itself, but from what is prior to itself. This is the case also with truth and good. That from which another thing comes forth is internal; and that which comes forth is its external. Each and all things that come forth are like cause and effect. No effect can come forth without an efficient cause. The efficient cause is the internal of the effect, and the effect is its external. They are also like endeavor and motion. No motion can come forth without endeavor, insomuch that when the endeavor ceases the motion ceases. Wherefore the internal of motion is endeavor, or moving force. The case is similar with living endeavor, which is will; and with living motion, which is action. No action can come forth without will, insomuch that when will ceases action ceases; and therefore the internal of action is will. From all this it is evident that in each and all things there must be an internal, in order that they may come forth, and that they may afterward subsist; and that without an internal they are not anything.
 So also it is with the good which is of love; unless there is an internal good in it, it is not good. The internal good in the good of faith is the good of charity, which is spiritual good; but the internal good in the good of charity is the good of mutual love, which is external celestial good; and the internal good in the good of mutual love is the good of love to the Lord, which is the good of innocence; and this good is internal celestial good. But the internal good in the good of love to the Lord, that is, in the good of innocence, is the good Divine itself that proceeds from the Divine Human of the Lord, and consequently it is the Lord Himself. This last good must be in all good, in order that it may be good; and therefore there is not any good unless its internal is from this source; for unless its internal is from this source, it is not good but evil, because it is from the man himself, and that which proceeds from man is evil; for man regards himself in all the good that he does, and also regards the world, and thus not the Lord nor heaven. If the Lord and heaven are thought of by him, they are to him as means to serve his own honor and his own profit. Consequently these goods are like whited sepulchers, which outwardly appear beautiful; but inwardly are full of dead men's bones, and of all uncleanness (Matt. 23:27, 29).