I loved the concept and themes of community, healing, and nature. And the voice acting is so soothing, I could listen to it all day.
I wish the A and D keys strafed instead of turning. That would have helped me judge position and distance of the raindrops, based on how much the left/right balance of the sounds changed when I moved.
More audio feedback when you are at the edge of the level would be helpful, too. There is a sound that plays when you approach a "wall", but no more feedback after that if you are still walking into the wall. I spent at least a minute walking into a corner without realizing it, until I opened my eyes. More rustling sounds while walking along the wall would have helped.
Overall, it's a great concept, but I wonder if the gameplay would work better as something other than a first-person game.