I have about 245 hours played so far and thought I had a pretty good handle on the game mechanics and basic controls. Nothing like those mortal kombat fatality combos I've been seeing on here, but I'm definitely comfortable with all the controls (or so I thought).
As it turns out after being absolutely chunked by bismuth walls, I learned that you're not actually supposed to stand within striking distance of the wall. While others may have already realized this by now, I thought I would point this out to save some fellow greymanes a couple of meat soups.
Focused Force Palm is actually a RANGED attack. As you hold down R3 (or whatever it is for your respective device) you'll notice the palmer leaf symbol in the center of your crosshair getting further away from you. Line up that leaf with the glowing orb inside the wall and don't let go until you see the golden flashbang of victory.
Tldr; Focused Force Palm is ranged attack. Focus + Aim = No more spicy wall