I got all the beams and been throuhg Sky fortress. Got the Light suit and can travel through the light of aethor (or whatever it was called) and I remember I stopped because I couldn't find something,I think I was looking for keys. Where am I? Lil help plz? @.@
You want to get the last few keys to get in the final temple and battle the last boss. If I remember correctly, you aren't that far from being finished.
Gamefaqs will probably be more accurate though.