Back when I finished the game and collected all the old verses, I really liked the theory that Cogita was the author of the old verses. This comic is specifically based on Old Verse 9 (”I set the bones of Pokemon adrift upon the river...”)
When I first found that verse, I interpreted it as someone outliving their Pokemon partners and mourning those losses. I felt like this was fitting for Cogita since she doesn’t seem to have any Pokemon partners except for Enamorus.