If you want to go in further, you'll need to take a harder test... Makes perfect sense, no? So what do you want? Do you want the new test?

Then go to [map 270020500] and defeat Lilynouch, the Ice Knight who guards the Road of Regrets. If you defeat the Ice Knight, I will grant you permission to go beyond that.

That's too hard for you? That's too bad then. I guess that's just your limit.

You've defeated Lilynouch. That's amazing. I will grant you the permission as promised.

Go on. You should be able to go up till [map 270030100]. As you may have guessed, you can't go beyond that. If you want to go further... you'll have to take a another test.

As the representative of Rhinne, the Goddess of Time, I grant you permission to go past [map 270030000], the Door of Oblivion, and look back at your 1st oblivion.

You haven't defeated Lilynouch yet. I don't think you are strong enough to walk against the flow of the past yet.