Very gloomy story - but the gameplay really fits to the narrative; At first I didn't quite know what to do, or where to go, but slowly figured it out until I finally reached the end and realized, what it was all about. Good job!
I can understand, that some people might get frustrated walking in circles. Maybe you could "hint" at the right path with occasional fireflies flying in the right direction, or maybe a little bit of fog creeping along the way.