AC 8865 - What Does It Mean 'Reigning Universally'?

AC 8865

What reigns universally with a person
is that which is present in every idea of his thought
and every desire of his will,
consequently which constitutes his actual mind or life.
That which reigns universally within a person
should be the Lord,
for that which reigns universally within the angels in heaven
is the Lord,
and they are for this reason said to be 'in the Lord'.
The Lord starts to reign in a person
when he not only believes
that everything good and everything true comes from Him
but also loves it to be so.
Angels not only truly believe but also perceive it to be so,
and that is why their life is the Lord's life within them.
The life of their will
is the life of love coming from the Lord,
and the life of their understanding
is the life of faith coming from the Lord.
All this shows what is meant when it is said
that the Lord is the All in all of heaven,
and that He is heaven.
When the Lord reigns universally
with a member of the Church,
as He does with angels in heaven,
the Lord is within
every truth and good of faith residing with him,
just as the heart is within all the blood vessels,
since they derive from it their origin,
and the blood which is their life.