March 7th doesn't recognize this place. She is certain this is not her memory. She can't tell whether this is the Matrix of Prescience's calculation result or yet another trick from the Messenger.
However, the Messenger is gently pointing the way for her, as if they genuinely wish to show March 7th her "beginning."
March 7th cautiously moves forward following the Messenger's guidance, and actually feels rather relieved β No matter what lies ahead in wait, it will surely become a new "memory" for her.