The game has an interesting take on the theme considering you said you weren't inspired by it. I never thought to think of passage as the passage from life to the beyond. The gameplay is simple but works well enough. Plays very much like a zen game to just unwind doing simple tasks.
There are a few improvements that could be added:
- Feedback based on the number of correct (or incorrectly) placed souls could add to the lastability of the game.
- An in game explanation of how to play would have been nice
Overall a neat interpretation of the theme. Hope you find success with the Unreal Engine in the future!