A major development in the game is these new objectives that you can see from across the map. They cut through the fog and slowly rotate to face you.
When you get close, a smaller gate appears which will get you started on setting up a little circle of monuments.
The forest grows, dies and reshapes around you, but when you set up a circle of monuments, they weather the ages. These are your marks on the world, and since you will definitely get lost, these will help you on your way again.