651. And shall overcome them and kill them, signifies the consequent destruction of every good and truth of the church. This is evident from the signification of "to overcome and kill the two witnesses," as being to destroy the things signified by "the two witnesses," which are the good of love and charity and the truth of doctrine and faith. That these will be destroyed by the affections of the natural man separated from the affections of the spiritual man, which are evil cupidities of every kind arising from infernal loves, is signified by "the beast that cometh up out of the abyss;" and that it was foretold that this would come to pass at the end of the church, when the Last Judgment takes place, has been said above. "To kill" signifies in the Word to kill spiritually, which means here to destroy the good of love and the truth of doctrine, as may be seen above n. 315.

In the Word, “light” in the highest sense represents Divine Truth: knowledge, ideas, understanding that come to us from the Lord. In lesser degrees -- the light of a lamp, the light of the moon and so forth -- it represents lower levels of truth, ideas and understanding drawn from more earthly sources. Also, the sun in the Word represents the Lord, with its heat representing the divine love and its light representing the divine wisdom. That wisdom flows into our minds and enters our lives in the form of truth -- things we can know and ponder that lead us and help us to be good people. This connection between light and thought is one of many spiritual/natural relationships that's embedded in our common language. People “see the light” when they understand something; we try to “shed some light” by bringing new thoughts to a difficult question; people are “enlightened” when they get new information or a more complete understanding of something. And a light bulb in a cartoon represents an idea!