Because Divine truth proceeds from the Lord, it is Himself for what proceeds from any one is himself. This may be illustrated from the case of the angels. From them proceeds a spiritual sphere which is from the affection of their life; this affection goes forth or is diffused to a distance, from which their quality is known and where they are. And because the sphere going forth from them is the same as the affection of their life in them, they are themselves their own sphere, or proceeding affection. But from the Lord as a Sun proceeds the Divine which fills the whole heaven and makes heaven; this Divine is called Divine truth. Hence it is evident that Divine truth is [the Lord] Himself.

Continuation:-

[2] When the spiritual internal is opened, and communication takes place by that means with heaven, and conjunction with the Lord, then a man is enlightened. He is enlightened especially when he reads the Word, because the Lord is in the Word. And the Word is Divine truth; and Divine truth is light to the angels.

Man is enlightened in the Rational, for this is directly subject to the spiritual internal, receives light from heaven, and transmits it into the Natural purified from evils, filling it with the knowledges of truth and good, and also adapting knowledges from the world to it for confirmation and agreement. Hence a man has a Rational, and hence also an understanding. He who believes that the Rational and the understanding belong to a man before his Natural is purified from evils is deceived. For it belongs to the understanding to see the truths of the church from the light of heaven; this light flows in with no others.

As the understanding is perfected, so the falsities of religion and ignorance, and also fallacies, are dispersed.