Relaxing game, felt like undertale, but counterintuitive controls made it special.

I don't get why would the player change the position of the blocks, as he can just press A to collect them, and you can't avoid trees. Also, I did not get how to win the game, but collecting fireflies in that nice forest feels confortable.

It took me until I clicked on settings to find out that "a" was the button needed to catch firefly. What I don't understand is, what does pressing the space bar/casting spells do?

Because of the lighting/atmosphere in the game along with all the buttons you have it feels very much like a finished game.