You can supercharge spells!

OK,

Just found something last night, after 130 hrs in the game. You can actually supercharge your spells. That healing spell, for example, when you cast it, if you hold down the left mouse button instead of tapping it, it will grow by up to 3x, and then you release it and it's 3x stronger healing than before.

Kind of embarrassing, but I never did figure out how to "power up" spells. I've seen it mentioned but it just didn't click in my mind that I should be doing this. And a few spells can be supercharged like this.

Anyway, just wanted to share my blonde moment, I've been casting my main heal at 1/3rd of its max capacity for 130 hrs.

I was also at around 50 hrs when I realized you can throw a torch (with F), and that is why torches come in bunches of 5. And you can mark things (like beacons for puzzles) by tapping V while looking at them through your looking glass, I was at around 80 hrs when I figured this one out.