'Pharaoh,' in Genesis 40, represents the new natural self. 'Pharaoh' and 'the Egyptians' in the Word, signify the sensory and scientific principles. 'Let Pharaoh live,' as in Genesis 42:16, is a phrase that is employed to say something emphatically, thus to state a certainty. 'Pharaoh and his army' signify people who are in falsities from evil. 'Pharaoh' signifies false ideas infesting the truth of the church. It also signifies scientific ideas, or the natural principle in general.

(Odkazy: Arcana Coelestia 1487, Arcana Coelestia 5192; Exodus 16)

Darkness" is a state without light. "Light" is truth from the Lord, so "darkness" represents a state where truth is lacking. Here's a cogent passage from Arcana Coelestia: "The person who has yet to be regenerated is called 'a void and an empty earth', and also 'ground', in which no good or truth at all has been sown - 'void' where there is no good, and 'empty' where there is no truth. Consequently there is 'thick darkness', or stupidity and lack of knowledge about anything that has to do with faith in the Lord and so anything that has to do with spiritual and celestial life. (Arcana Coelestia 17)