This calm and relaxing video depicts Li Ziqi making paper by slicing and drying tree bark, soaking it in water, slow-boiling it with ash under burlap, fastidiously cleaning it, crushing it, chopping it up, muddling it with a gigantic mortar and pestle, then smoothing the resulting cellulose slime on a floating mesh rack. Paper! There's even a funny twist ending.
Li Ziqi's channel has many other beautifully-shot videos of things — mostly simple but laborious meals — being prepared from scratch.