When one elsecalls, they move their whole self into shadesmar. That is my understanding. Somehow only this is different from soulcasting when the person looks into the realm in order to communicate with the objects. However when an individual looks into shadesmar to soulcast, they are still exposed to all the dangers of the place (like drowning). How are they not fully entering shadesmar if they are interacting with the place like someone who is fully there would?