Thanks Corentin, fuel for contemplation. Something's coming up of our shared human organs (brain-eyes-ears-voice box-lungs-spine etc.) developing an ability to reflect and mimic light and vibration encounters (maybe touch for blind people) then somehow construct and share a dream ('thoughts') from the encounters with another who is also within or without the same encounter. As if the reflection of biological cell encounters creating a dream of sorts replicated organically and somehow transmitted through light and sound (prior to semiconductors and screens which is amazing in and of itself). I postulate the cortex has almost everything to do with our human complexity and 'advancement' of sorts from simpler creatures. My hand can't dream, but I can. I can see my hand and identify with the sight and feeling as 'my hand'. I can visualise 'my hand' without seeing it. I really don't know without projecting concepts onto 'my hand' what 'my hand is, except the physical experience of sight and feeling when I give it my attention. I can't hear my hand, unless I use both hands to clap, but then I attribute a whole lot of concepts to hands clapping... a koan bullshit blah blah story. Strange and fascinating stuff. As if starting from maybe knowing, to not knowing, becoming knowing again... then 'going back' to not knowing!... Small insight: Hello contemplation😁! Cheers, RD