"While you're unconscious other players can do things such as "Quick Loot" your person, bind you for capture, or tow your body around a short distance. One of the things I want to call out here is that while being incapacitated leaves you unconscious, it doesn't actually result in any long-term penalties. There's no loss of Spirit for being incapacitated and it doesn't reduce your total life span."

~Caspian, Design Journal #4 – Incapacitation, Spirit Walking, and Permadeath, 26 August 2015

There's more detailed info in that DJ, ofc, but not much more on the restrictions to what can actually happen to your body while your soul is taking a hike.