The essence building up within the Essence Beast gushed into the fruit, slowly mixing into it before resulting in an orb. If it had happened naturally, the process would have taken years.
But here, Compass Carburettor was guiding it into doing this, not to mention the fact that all the Sparks were spilling out their essence that was being collected into this. Also, the fruit was a condensed form of the Blood Vital Grass's properties.
Two hours passed in such a fashion as the Essence Beast began to absorb Origin Essence from the crack in the ground, fuelling everything into the creation of the new orb in its body.
Attribute Spark!
Immediately after this happened, Compass Carburettor took out an energy blade sword and began to hack it repeatedly, eventually cracking it as the attributed essence stored in it seeped into his body.