It should be noted that you don't actually gain access to the Enlightened Seven/White Conqueror until after you actually go through the 7th path and fight the Icy Idol. Having access to the Seventh Path (as indicated) is not enough. When the Icy Idol has been defeated proceed trough the Sacred Lands. At the end, on the same platform as the big gate, there is a transporter which will enable you to go back to the world map.
I've done the icy idol but missed to talk with rush's mother and oswald before. seems like i cannot fight the enlighted seven now as i cannot find them where they should be. got the eye of promise btw