I'm sorry, but I don't understand.
EDIT: Well, I finally managed to happen upon the solution.
To be perfectly honest though, I don't think making the act of saving the game a puzzle was a good idea, especially when the game itself doesn't make it clear that this is the only way to save the game. I was honestly this close to just quitting the game without saving, almost ruining what was otherwise a great experience so far.
But yeah, aside from that, this is a really good game so far. Nice graphics, atmospheric audio, and a really interesting story. Now that I know how to save, I look forward to seeing what else the game has to offer.
EDIT: Well, I finally managed to happen upon the solution.
Spoiler
When you randomly encounter the room with an Angel, use one of the memories on her.
[close]
To be perfectly honest though, I don't think making the act of saving the game a puzzle was a good idea, especially when the game itself doesn't make it clear that this is the only way to save the game. I was honestly this close to just quitting the game without saving, almost ruining what was otherwise a great experience so far.
But yeah, aside from that, this is a really good game so far. Nice graphics, atmospheric audio, and a really interesting story. Now that I know how to save, I look forward to seeing what else the game has to offer.