AC 3472 & AC 4376 - why we don't always understand, and yet . . .

AC 3472
That the things in the literal sense of the Word
are each and all representative
of the spiritual and celestial things
of the Lord's kingdom in the heavens,
and in the supreme sense
are representative of the Lord Himself,
may be seen from what has been thus far shown,
and from what of the Lord's Divine mercy is still to be shown.
But as man has removed himself so far from heaven,
and has immersed himself in lowest nature,
and even in what is earthly,
it is altogether repugnant to him
to hear that the Word contains deeper things
than he understands from the letter;
and this is still more the case when it is said
that it contains things incomprehensible,
which are adapted solely to the wisdom of angels;
and this is even still more so when it is said
that it contains Divine things themselves,
which infinitely transcend the understanding of angels.

AC 3476
. . . the Word has been given by the Lord to man
and also to the angels
in order that by it they may be with Him;
for the Word is the medium that unites earth with heaven,
and through heaven with the Lord.
Its literal sense is that which unites man with the first heaven;
and as within the literal there is an internal sense
which treats of the Lord's kingdom,
and within this a supreme sense which treats of the Lord;
and as these senses are in order
one within another,
it is evident what is the nature of the union with the Lord
that is effected by means of the Word.