I don’t know if this is what you mean but intent and expectations are important in cosmere magic.
Questioner
Why can Stormlight heal Lopen's arm, but can't heal Kaladin's scars?
Brandon Sanderson
Because *photo pause* a lot of the healing in the Cosmere works on principles of expectation and how you envision yourself.
Questioner
So Kaladin has accepted the scars.
Brandon Sanderson
Kaladin has accepted the scars, and Lopen never accepted the one arm. It's a good question, it's one I am hoping people will ask. [...] It's one of these ties when I built the magic systems that I wanted certain threads to run through them, so when I eventually have them being used in the same books, that there will be consistency among them, that so they won't feel like everything's just thrown together. So, for instance, the intention and expectation, for instance, in Warbreaker-- What you want to have happened influences what does happen, the expectation, the way you are thinking about things. Very important for most of the Cosmere magics.
Also tangentially related I think Vasher came to the point that he actually could mentally command without speaking. With at least some of the commands.