For some reason, I'm thinking, "Oya nanoja!" but I can't remember where I heard that I cannot recall........
The spell mind-engraving process looks like how I imagine Rene Descartes' assumption that all humans are by default in a state of oneirataxia must be like: Your dreaming self loads and unloads skill-based memories at a whim, and you have full faculties within the dream in the context of these... context-specific memories, but as soon as you exit the dream, the skill-memories disappear, only to reappear should you revisit the dream.
I want those workbenches... I REALLY want them... and that warehouse... and that leveled compacted dirt floor....