
Originally Posted by
Worldshaper
Maybe?
The Beledar is an interdimensional vessel, containing 5 naaru. These are the 5 naaru that communicated with Mereldar through visions, teaching her about the Light. The reason being that one day, her people would need to free the Beledar from the clutches of the Void and fight in defense of this world.
Their increasing shift to the Void is part of a natural cycle, but probably spurred on by everything going on around them. Black Blood and so on. (Five lanterns, now darkened.)
The mural of Azj-Kahet is prophetic and depicts a possible future in which the Beledar is completely darkened, and where the ascended Nerubians worship at the feet of a God.
That God is Xal'atath, the Ascended.
Perhaps once the Dark Heart's hunger has been sated, she intends to use it on herself which is "the awakening". The rise of a new God on Azeroth, one which consume the world.