just like when you go crazy a spirit its now your friend , i follows you around and brings you useful stuff
*it moves appearing and vanishing at a distance , like the ghosts in elden ring and when you lit a fire it sits around allowing you to interact with it .
*all passes thru it , no harm can be done to it and you/other creatures can just walk thru too.
*if you give it and item wile seated it will drop it with a sound and will bring you all of that item it can find in a radius until a new item its given (i want my arrows back)
*it cannot carry anything too big , like big rocks , long sticks , rifle , medicine box and that sort
*and it makes sense since we know spirits come to us in visions and bad spirit posses the beast at night , also that can give more use to the old shaman