Normal people can just DO this without medication? I can sit here and listen to music without feeling the need to be hyper-tensed and aware of everything around me? Why does my heartbeat feel calm? Why am I not on edge?

I was recently reading a book on sanitation conditions in Stalinist Russia, and it made me think about how many ‘normal’ things I take for granted in my day-to-day life that simply were not the norm for the majority of human history. I guess this is the reverse - something which other people take for granted, but I’ve only just received, and it’s like the Holy Grail in my hands.