It comes from Star Seeds. They're the source of everything in the verse, including celestial bodies and all life. They're also the sources of power, existence, and identity. You can take someone's star seeds, sailor crystal in terms of Sailor Soldiers, and recreate them in any way you want, or take it and use their power for your own. Star Seeds are also possibilities at the most fundamental basis. They should be Type 1 Concepts as within the cauldron, they are perfect forms, and type 2 information manipulation.