Very original idea, I was hooked by the game mechanics of repelling the ghosts with my light and staying safe near my shrine! I played for 20 minutes straight but couldn’t reach the end as I lost my shrine in the ghost land, I only had the gem of the end to pick up!
The visuals and narrative are also interesting. I would say that the frustrating part is that the ghosts dash super fast at you sometimes so you’re dying a lot.
Overall, really cool that you chose to create a game around this trade mechanic. Congrats ! :)