1633. From the above it is clear what a difference there is between true wisdom and imaginary, or between wisdom that is given by the Lord and wisdom acquired by one's own effort; and that the former is imparted along a prior way [i.e., a priori] and is therefore complete, or fully ordered, but the latter along a posterior way [i.e., a posteriori], which is tight, closed, in disarray. Thus it is clear what a difference there is between the faith of the two, and that one who has not a saving faith, exerting his power of understanding to the very fullest, cannot at all grasp what saving faith in these and similar truths is all about, consequently what heaven is. Yet in the heavens, these matters are so well known, so plain and self-evident, that they are now saying they find it very surprising that the human race is so unwise that it even fails to understand this, when yet it is a matter of fact. This is the Belief in the heavens, and the doctrine of faith, the doctrine of those who have faith.