Arcana Coelestia #478
478. The reason he is called Adam is that the Hebrew word Adam means man. But the fact that Adam was never used as a proper name, only Man, is quite clear from the consideration that both here and earlier he is spoken of in the plural and not in the singular, and that the term refers to both man and woman. The two together are called Man. Anyone may see from these words that both are included, for it is said, 'He called their name Man on the day in which they were created', and similarly in 1:26, 28, 'Let Us make man in Our image, and they will have dominion over the fish of the sea. This shows also that the subject is not about someone who, when created, was the first human being of all, but about the Most Ancient Church.
Arcana Coelestia #6231
6231. 'And he said to me, Behold, I am making you fruitful and will cause you to be multiplied' means a bestowal of life through the good of charity and the truth of faith. This is clear from the meaning of 'being made fruitful' as that which has regard to the good of charity, and of 'being multiplied' as that which has regard to the truth of faith, dealt with in 43, 55, 913, 983, 2846, 2847. Since these are what bestow life on a person, the expression 'a bestowal of life through them' is used.