More exploring and backtracking through the big giant tree, culminating in a boss that's more annoying for its status effects than anything else. Which we counter by summoning meteor storms. Inside the tree. Somehow. It's magic; don't ask questions.
Following that, one of the sillier scenes in the game. The tree did what now? And was it really a good idea to stand out on an exposed branch while it did? And who spelled out a message in the forest below? When? How? Why?? Do we have a creepy stalker?
Regardless, that opens up the way to Windia, plus a currently useless temple (though, really, isn't that most of them?), and... more battlefields. Yay.