AC 9783 - the light that never goes out

AC 9783
To cause the lamp to go up continually.
(Exodus 27:20)
That a "lamp" denotes faith,
is because the Divine truth that proceeds from the Lord
is light in the heavens;
this light, when received by the angels who are there, or by a person,
is like a lamp,
for it illuminates all things of the mind,
and imparts intelligence and wisdom.
This light when received is faith.
But be it known that faith is not a lamp,
that is, does not illuminate the mind,
unless it is from charity; thus unless it is charity.
The case with faith and charity is the same as with truth and good;
truth is the form of good,
that is, it is good so formed as to appear in light.
So faith is the form of charity, or charity formed.
Moreover, truth pertains to faith, and good to charity;
for that which is true is believed, and becomes of faith;
and that which is good is loved, and becomes of charity.
The truth and good itself
which are loved
are the neighbor,
and the love of these is charity.