AC 5168 - why subordinating the natural is important

AC 5168 [2]
The subject treated of in the internal sense of this chapter
is the subordination of the exterior natural,
which is to be made subordinate
in order that it may serve the interior natural as a plane;
for unless it is made subordinate,
interior truths and goods,
and consequently interior thoughts
which have in them what is spiritual and celestial,
have not anything in which they can be represented;
for they are presented in the exterior natural
as in their face, or as in a mirror;
and therefore when there is no subordination
the person can have no interior thought;
[and] he cannot have any faith;
for there is no comprehension, whether distant or eminent,
and therefore no perception of such things.
The only thing that can make the natural subordinate,
and reduce it to correspondence,
is the good in which there is innocence,
which good in the Word is called "charity."
Sensuous things and memory-knowledges
are only the means into which this good may flow,
and in which it may present itself in form,
and unfold itself for every use;
but without this good in them,
memory-knowledges, even if the very truths of faith,
are nothing but scales among filth, which fall off.