From manifold experience, I have learned that souls and spirits, once they are convinced of the truth, are for the most part, and almost always, carried away into things contrary, and so, into doubts about truths. The experience I have had in heaven in this regard is so extensive, that it would be a lengthy undertaking to relate it. The reason for this is that one should not be convinced of the truth by visual persuasion, just as one should not be by miracles - also, that a greater field [of thought] has to be acquired, rendering the person flexible; besides further reasons, which I am not being given at this time. 1748, the 12th day of January.