Damn! Great game, looks really nice and just a good job.
Some things that I found were bad were the following:
The camera angle makes me miss out on information in the game. I can't see what happens if I light a torch or push a box onto a button sometimes, so it makes it a bit more of having to guess what happens. Felt a bit frustrating.
The pushing/pulling mechanic is good, but I feel like it got annoying by the end of the game. Having to wait to breathe in and out is not too fun.
Also could use a bit of a tutorial, took me a bit to understand what the astral form does. But sure, it was obvious enough that I could figure it out without a tutorial, meaning the design language was pretty good!