When you finally enter the Mnemic Egg there is a little puzzle to solve.
First off if you don't read the conversation inside very good you will have no clue what to do. To make it simple here's what needs to be done.
1. First activate the middle or the "Heart"
2. Then proceed to activate the four corners as in "leave no corner unexplored"
3. Once you have done this in that order it will clear the puzzle for you.
I hope this helps anyone who gets stuck here.