[@Smystar99][@potatochipgolem] When they travel to any dream realms, they're astral projecting their consciousness there. Their bodies remain in "reality", in a kind of comatose state. This is an important concept later. And if for some reason, your dream form ever comes in contact with your "real" form, you destroy the ability to return to it. You will be forever trapped in the dream state. Hence, coma patients.