The reason we do not become rational to the highest degree
we are capable of is that our love, which is a matter
of our intent, cannot be raised up in the same way as our
wisdom, which is a matter of our discernment. The love
that is a matter of intent is raised only by abstaining from
evils as sins and then by those good actions of thoughtfulness
that are acts of service, acts that we are then performing
from the Lord. So if the love that is a matter of
intent is not raised up along with it, then no matter how
high the wisdom that is a matter of our discernment has
risen, it ultimately falls back to the level of its love.
—Divine Love and Wisdom 258