Not “real memories“. They are generated from the endless, boundless possibilities of the Aether. Free memories exist through the continuum in different forms – always mingled with and powered by the Aether, mostly manifesting naturally in Aether Wells.
Free memories can be grasped and experienced by a character as a “Seeker” if they possess the right faculties or circumstance allow it.
If a Seeker persuades them, the spirit may be able to grant/teach a level 1 lore in something the character does not possess. SAN check or the Seeker gains Nightmares for a year as well, when they return to their natural surroundings.