You can rub against a certain tree, then a pine cone or something will fall and you can eat that. There is a watering hole you can drink from but I can't remember where it is.... It might be a fountain. The action to eat or drink will pop up as a button whenever you can do it. Eating the pine cones give you the power to give people masks I think. Can't remember if water does that but it most likely does.
Praying~ Walk up to the white statues and the action will come up, you do that for a while and you turn into a white stag with the power to turn other people into a white stag/fawn.