As he continued to read the guide, he also learned about the grades of worlds. He learned that there were small worlds, large worlds, and great worlds.
Small worlds are incapable of producing beings at the fourth mortal coil and above because they lack the resources and power. Large worlds can easily produce beings at the fourth mortal coil up to the sixth mortal coil. Finally, great worlds have beings at the seventh mortal coil and above.
When Sword Flash saw this mode of classification, he found it amusing that it was done on the basis of the strength of the inhabitants of worlds, not the size of worlds, as the categories led him to believe.
It was also stated that the world of Ethera is one of the great worlds in the universe. This puts it at the top of the food chain in the universe.
Unfortunately, the world of Ethera isn't the only great world in existence, and most great worlds are war mongers that like to subdue, absorb, or consume other worlds in order to grow stronger.
