AC 3884 [2]
. . . heaven is within a person,
wherever he may be . . .

AC 3894
. . . the respirations of angels and spirits
are altogether according to their states of love
and of the derivative faith.

AC 3894a
Because this is the case,
and because the upright
on entering the next life
are first of all taken back
to the life which had been theirs in the world,
and so are also taken back
to the desires and pleasures of that life,
they cannot move among angels
and breathe with them,
for the reason that they have not yet
undergone preparation for this.
So when they undergo such preparation
they are first of all
introduced into angelic life
by means of their taking breaths in unison with angels,
and as they do so they enter at the same time
into interior perceptions and into heavenly freedom.
This takes place in a community consisting of many,
that is, in choirs,
in which one member breathes in the same way as another,
and also perceives in the same way,
and in the same way acts in freedom.