Quote Originally Posted by Starkbeaumont View Post
this is where we end up after Antitower? not really related to the topic but wouldn't that technically be a way to travel to the other worlds?
That it is. We also travel there briefly after the showdown with the Warriors of Darkness in 3.4 to feed Hydaelyn enough Light aether to free Minfilia and send her to the First.

Not sure if it can be used to traverse worlds. Nothing has said it can do so thus far.