'Gray Ancestor' is just like that; the exploration of endless years has finally allowed Him to comprehend His own Origin Dao, becoming a Second Realm time lifeform.
It was only while passing near the Milky Way dimension that 'Gray Ancestor' occasionally glanced towards the Milky Way dimension and discovered that the recently condensed Heart of Heavenly River was extremely unusual and would, in the distant future, transform into one of the raw materials for a lord-level weapon.
Every extended epoch, the Milky Way dimension would condense a Heart of Heavenly River. The previous Hearts of Heavenly River were relatively ordinary, only this recently condensed Heart of Heavenly River has the potential to become a lord-level weapon material.
Of course, to discover this, one must delve deeply into the future timeline observation. As a Second Realm time lifeform, 'Gray Ancestor' far exceeds a First Realm time lifeform in terms of timeline observation.
