Following the chronology of the story from Labyrinth to chapter I, you can see how the world of this game was changing. Mages lost much of their power and control over the magic. Many ancient skills were lost. No longer do they build shrines, they just use them until they brake and turn into useless rocks.
I find this game one of your easyest. Most puzzles can be nearly solved with miroring waals around points they are touching. I had to ad some optional rule like draw only completed shapes to make it fun for me.