Lost

Lost are people whose bodies had somehow destroyed or died in the real world, leaving their souls stranded in the Dream Realm.^[1][2]

There weren't a lot of them, since most of the time the soul perished shortly after the body had, but there were some.^[2] They will be stuck in the Dream Realm unless they can become a Master.^[3]

Only Awakened below the Master rank can become Hollow or Lost.^[3]