GamerMilo

I read it this way as well. I guess Nohadon is the Cosmere's Tom Bombadil. We are so used to Sanderson having a well thought-out reason for everything, that such an unexplained character immediatly sets our theorist brains on fire. I think WaT was the Cosmere book where the 'pure faith' aspects of the Cosmere were brought to the forefront the most. The Beyond, Dalinar's faith in the God Beyond (and the coupled epigraphs pulled from in-universe OB), and lastly Nohadon as a manifestation of Dalinar's faith or inner worldview. Upon ascending, Dalinar's crazy, intuitive usage of spiritual aspects like Connection and Identity has reached levels beyond a mortal mind, and Nohadon could either be the God Beyond, or some kind of Blackthorn-Unmade collection of Connections and memories that form a Nohadon-like cognitive shadow. In that regard, what exactly are people in the visions? Are they cognitive shadows? They are formed from pure investiture by the Spiritual realm.

I read Sigzil's arc in WaT as a sped-up version of Kaladin's development, eventually leading to him swearing the 4th Ideal. From this, we can assume that Sig was already close to the wow-almost-there point in Ideals that Kal was during RoW (and protected him from the power putting all other radiants to sleep). WaT basically confirmed that the Ideals aren't a rigid five-step process, with Syl noticing a small step in Kaladin's development. In addition, Radiants just seem to be really liked by their armorspren, even way earlier than searing the 4th. Kaladin is surrounded by windspren when flying in WoR, Shallan draws a bunch of creationspren often etc. So what I think, is that Sig was already the 'favorite Radiant ever' of a growing portion of windspren. Maybe he even stayed that way, as he continued to encompass the Windrunner ideals (at least at times). The 4th, then, doesn't amount to a Radiant creating a bunch of armorspren, but them gaining the ability to form Plate from the armorspren that decide to follow them.