what I never understood about the emerald portals were.. how did they make sense? The emerald dream was meant to be an immaterial world existing in the dreaming plane, where ysera ruled over. Only druids like malfurion were able to enter the dream and be conscious of themselves in it, but they, like everyone else, did so though mental and astral means of leaving there physical body.. in other words, dreaming. And like them, everyone else exists in the dream when they sleep...
So how can portals work, you can't physically enter the dream, its meant to be your dreaming mind that does.
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Hurrrrrrrrr!