I actually had like a really-- theory I was developing the past couple of weeks about Regrowth, and healing, and the Cognitive Realm. Let's take a look at this...
*Written/Paraphrased:* In the cosmere, you have matter, mind, and soul. Obviously, the physical world is most well understood (same as ours) and the spiritual is most mysterious. When anybody dies (going off from info in Secret History) their soul, which was tied to their body, the Connection is broken and the soul/Cognitive Shadow appears in the Cognitive Realm then goes on to the Spiritual. If healing is applied at any moment while the soul/Cognitive Shadow is in the Cognitive Realm, the Connection can be reestablished and that is why Regrowth can heal recently dead. Type of wound Shardblade versus not may determine how fast the Shadow is sucked into the Spiritual Realm. Also amount of Investiture a soul contains. Souls = Investiture, or at least all of them contain some?
So that's a RAFO. We'll dig into that a little later.
Oh, *inaudible*. Am I close?
Yeah, you're on the right track.