For the man of today the expansion of life and its culmination are plausible goals, but the idea of life after death seems to him questionable or beyond belief.
Life’s cessation, that is, death, can only be accepted as a reasonable goal either when existence is so wretched that we are only too glad for it to end, or when we are convinced that the sun strives to its setting “to illuminate distant races” with the same logical consistency it showed in rising to the zenith.
But to believe has become such a difficult art today that it is beyond the capacity of most people, particularly the educated part of humanity.
They have become too accustomed to the thought that, with regard to immortality and such questions, there are innumerable contradictory opinions and no convincing proofs.
And since “science” is the catchword that seems to carry the weight of absolute conviction in the temporary world, we ask for “scientific” proofs.
But educated people who can think know very well that proof of this kind is a philosophical impossibility.
We simply cannot know anything whatever about such things. ~Carl Jung, CW 8, Para 790