4296. So also when the discourse is about intellectual things, and man has for an object of his thought horses, then he speaks concerning horses; for these correspond [with intellectual things]; thus very many, yea, innumerable [natural] things correspond with spiritual things, from which it may be concluded that in heaven they speak and think of scarcely anything else than the Lord, His kingdom and faith, and whatever nearly or remotely pertains to them - things which are thus varied in the world of spirits and in the thought of man according to external objects of sight and hearing or internal objects of memory. I have seen horses, and spirits remarked that there would immediately occur to them something relative to intellectual things. - 1749, June 4.