I recently thought of this idea, and I haven't expanded much on it yet. I would like to ask you all for help on this theory!
So you know how each surge is shared by two orders? I had this idea that each surge has an attribute. Like for example, Lightweavers and Truthwatchers share the surge of illumination. Lightweavers focus on finding self-truth, and Truthwatchers focus on finding fundamental truth. So Illumination's attribute would be truth. And Lightweavers and Elsecallers share Transformation. Elsecallers seek self-improvement, so Transformation would be making yourself better, or something like that. I included a chart to help! Ideas welcome!