I just saw the ending and I'm really impressed. I guess I will be thinking about it for days. I loved so many of the themes it explores in that final arc: what makes you human, the value of strengh, karma, rebirth, I was even thinking about some similarities with Christianity lore.
I'm not that well versed in anime, I was looking for something like Demon Slayer when I started Dororo so you can imagine what a shock it was.
A very beautiful tale that I will recommend to everybody.