"What's wrong? Get a bit of a scare out there? No problem. Have a seat and get comfortable. We'll both be hollow before you know it."
— Crestfallen Warrior
"Oh, hello there. I will stay behind, to gaze at the sun. The sun is a wondrous body. Like a magnificent father! If only I could be so grossly incandescent!"
— Solaire of Astora
You see, the difficulty of Dark Souls is the single biggest narrative device the game has. You don't need to be told that you're a weak piece of trash. The game will let you know that. You don't need to be told that you're in a dying world: you're experiencing it. You don't need to be told that this boss is a badass and you should fear them, you'll be feeling it as battery acid pump through your veins while you helplessly flail about trying to avoid their attacks while also doing damage when they're near death, but so are you. You don't need to be told that this is a world with a cycle of pain and suffering and death with brief relief in success because that will be your life.