Every life had its own awareness and fusion source, which would transform into mental strength. It could originate from a simple level of awareness. After which, it would then be influenced by reality, and project it out. When the awareness became stronger and complete, it would enter level seven mythical wizard and become a soul. The ordinary lives in Maria's World possessed their own awarenesses. After they died, they would automatically be assimilated by the Map of the Universe, thus filling up the hourglass. They would then become the Source Form of the Map of the Universe.
When some of the powerful wizards, priests, and deities passed away, as their awarenesses were way beyond the ordinary people, they would still linger around in Maria's World and maintain a special form. Without a body, the awareness was without memory, and thus, could not hold any information. It would just wander about, which would create problems in Maria's World.