If you want to go in further, you'll need to take a harder test... Makes perfect sense, right? So what do you want to do? Do you want another test?

Then go to Memory Lane 4 and defeat the Chief Memory Guardian. If you defeat 999 of them, I will grant you permission to go beyond that.

Oh well. Too bad if you think it's too hard for you. I guess that's your limit.

You've defeated 999 Chief Memory Guardian. That's amazing. I will grant you permission as promised.

As the representative of Rhinne, the Goddess of Time, I grant you permission to look back at your 5th memory.

Go on. You should be able to go up till Memory Lane 5. As you may have guessed, you can't go beyond that. If you want to go further... you'll have to take a new test.