Check out the Jung quote and writer Matthew's discussion of it in the notes section of this post of mine. https://medium.com/channspirations/a-poets-theory-of-knowledge-9e842d20095b subtitled "A two-tanka series inspired by connection to the collective consciousness"

And then there's this one that describes a discussion from my end, an the attack spewed at me from the materialist on the other end, when I said I know souls exist and he insisted and persisted that since I couldn't objectively prove it... https://medium.com/illumination-curated/lets-talk-about-knowing-versus-believing-21175cf0caee