Also, don't know if it's intentional, but you get an item that reduces the cooldown on your dodge. By itself, it's not really anything special. It does reduce the cooldown, but not significantly. Yet if you
hold down while dodging, the cooldown is instantaneous. Makes backtracking more tolerable too.
I beat a few bosses and found a few of those shrines. I didn't get shit.
I just found my second shrine and I got a second point. You have to find the
Mea Cupla shrines. That's the really big one that has a sculpture of a bunch of people holding on to your sword.
The upgrade tree seems superfluous now anyway though as everything is gated in a major way. I thought you actually had to spend points to get the skills, but you don't. Your Mea Culpa points just unlock the tiers automatically.
edit: Some of this platforming is just clunky as fuck. There's no "drop down" button, and the game is super sticky when it comes to ledges. Want to drop down on to a moving platform that is moving over some spikes while you are holding on to the side of a pillar? Good luck with that, because you have to
jump instead of dropping, and it makes the screen move up and you can't see the platform and the spikes anymore. It's a literal leap of faith.
edit2: And done until they patch this, or at least for the night. Just got hit out of the air by a boomerang, knocked onto a moving platform and the game became completely unresponsive.