In the 2003 video game Prince of Persia: The Sands of Time, the player can increase their maximum health by drinking from the "Magic Fountains", ten of which are scattered throughout the game:
As a gameplay mechanic, they're pretty standard. In-universe, however, they're baffling:
- The Prince finds them by going through holes in the wall, which lead to what appears to be a corridor in the Palace of Azad
- The corridor looks the same every time, no matter where the Prince enters from; even when he's coming from a location where you wouldn't expect to find a palace corridor, like the underground water reservoirs
- After drinking from the fountain, the Prince blacks out and wakes up outside the corridor, but the hole has vanished
- On one occasion, Farah (the game's sidekick and love interest) is in the same room as the Prince when he enters the mysterious corridor; she comments on his departure, but when he re-emerges she's forgotten about it, and doesn't know he had ever left
I'd be willing to accept the notion that these are hallucinations, if not for Farah's reaction. So, my question: what (and where) are these Magic Fountains?
Note that I'm looking for canonical evidence only: statements from people involved in the game's creation, or from licensed materials.