Cultivation

The ancient couple could only watch on as their disciples spent the entirety of the next week refining hundreds of gobs of Origin Essence. It was only once they reached about 500 each that their Martial Spirits began to turn a bit pale. 

At this point, the two Old Ancestors had grown numb. Their eyes were glazed over as their horizons were forcibly broadened, their hearts and souls merging to form a stronger Dao Heart. 

It might seem random, but if they didn't, they would likely collapse in madness henceforth. As such, the two could only tremble in their corner while they forcibly fought for their sanity. 

Draco and Eva eventually stopped at around 1,000 gobs of Origin Essence each, as their Martial Spirits had grown so thin and wane by that point that the two children were worried about them dissipating if they didn't stop now.