(This widens Lena's eyes more out of curiosity: perhaps Earth does have a world tree of its own similar to Eleven's world having Yggdrasil and still be invisible to everyone at the same time?

The possibilities are endless to see and think.)

Oh, so it could be possible that my world has an invisible world tree of its own as well? I am starting to wonder what's like to be in other worlds since I got here.