AC 1902, 1904 - the use of the rational & influx

AC 1902
If people were not imbued (steeped in) with hereditary evil,
the rational would then be born immediately from the marriage
of the celestial things of the internal person with its spiritual things,
and the faculty of knowing would be born through the rational,
so that on coming into the world
a person would at once have in himself
all the faculty of reason and of knowing,
for this would be in accordance with the order of influx . . ..

That which causes him to be born without any knowledge
is hereditary evil received from his father and from his mother.
Because of that evil
all his faculties are turned in a contrary direction
insofar as goods and truths are concerned,
so that the latter are not able
through an immediate influx of celestial and spiritual things from the Lord
to be translated into correspondent forms.
This is the reason why a person's rational
has to be formed in an entirely different manner or way,
that is to say, by means of facts and knowledges
entering in through the senses, and so by the external route,
thus by what is a reversal of order.
So a person is made rational by the Lord in a miraculous manner.

AC 1904
There are two affections distinct from each other -
affection of good, and affection of truth.
When a person is being regenerated
the affection of truth has the lead,
for he is affected with truth for the sake of good;
but when he has been regenerated
the affection of good has the lead,
and from good he is affected with truth.

[3] Intellectual truth is internal,
rational truth is intermediate,
truth of memory-knowledge is external.
These are most distinct from each other,
because one is more internal than another.
With any person whatever,
intellectual truth, which is internal, or in his inmost,
is not the person's,
but is the Lord's with the person.
From this the Lord flows into the rational,
where truth first appears as belonging to the person;
and through the rational into the memory-knowledge;
from which it is evident
that a person cannot possibly think as of himself from intellectual truth,
but only from rational truth and truth of memory-knowledge,
because these appear as if they were his.