Talk:Transcendent Alien Physiology/@comment-5739199-20160304200054/@comment-24053170-20160304200644

Actually their embodiments/representations of other planets. It even says so right on the wiki page-

"Each is the strongest lifeform of its planet, essentially the planets themselves"

They are the planets, even though they may take physical forms outside of their planet, they are for all intents and purposes the planets themselves. this is confirmed both in both the anime/games/visual novels and the actual backstory that Nasu provided.