'Waters' particularly signify the spiritual parts of a person, or the intellectual aspects of faith, and also their opposites.

'The waters above the firmament,' as in Genesis 1:7, signify the knowledges in the internal self, and 'the waters beneath the firmament' signify the knowledges of the external self.

'Waters,' as in Ezekiel 47:9, refer to the New Jerusalem, and they signify spiritual things from a celestial origin.

'Many waters,' as in Revelation 17:1, signify truths of the Word adulterated. 'Waters' or 'rivers' signify spiritual, rational, or scientific things pertaining to truth.

'Waters … that go softly,' as in Isaiah 8:6-7, signify spiritual things, and 'waters … strong and many,' signify falsities.

'Waters,' as in Psalms 104:3, signify divine truths.

'Waters' signify truths in the natural self, and in the opposite sense, falsities.

'The waters were dried up from off the earth,' as in Genesis 8:7, signifies the apparent dissipation of falsities.

(Odkazy: Apocalypse Explained 17; Apocalypse Revealed 50; Genesis 8)

1581. That 'separate yourself, now, from me' means that it cannot manifest itself unless that which does not accord is reduced to nothing is clear from what has now been stated, namely that the internal man wants that in the external which does not agree with the internal to separate itself. For until it has been separated the good which flows in constantly from the internal man, that is, from the Lord by way of the internal man, cannot manifest itself. With regard to the separation however it should be realized that it is not a separating but a dying down. In nobody with the exception of the Lord can evil that is in the external man be separated, for once a person has acquired something it stays with him. But it does seem to be separated when it dies down, for when it dies down it seems to be reduced to nothing. Moreover it is the Lord alone who is responsible for it so dying down as to be seemingly reduced to nothing. And when it does in this way die down, goods for the first time flow in from the Lord and move the external man. The state in which angels live is such as this. All they are conscious of is that evil has been separated from them, but in fact it is purely a withholding from evil and thus a dying down in such a way as to be seemingly reduced to nothing. Consequently it is an appearance, which angels also recognize when they reflect on the matter.