I like the concept, it gave me vibes of using the Dream Nail in Hollow Knight mixed with some fo teh fantasy problem solving of Rakuen or Omori!
The art and music were all really nice and I even appreciated the feeling of following the wailing to find my way to my next goal. One (very minor) thing I noticed there was that there seemed to be some tearing/odd lines in the seams between tiles sometimes. It might've been caused by me playing in browser but I've seen that caused by Unity's tile map in the past. In which case using a Sprite Atlas might help.