There are simply beings of legend, said to be darkened figures, beings of nightmare. They hold no physical qualities, and some doubt they even actually existed.
The birth of the Luminos would have the singular purpose of wiping out the Eoduuns in hopes of making morpheus a natural land.
Unlike the Eoduun, the luminos did not have a second species of development. However it is also said that these beings became the manifestation that becomes the magical entity inside of Maori.