Growing Food.

He used Origin energy to grow the grafted soul fragments in his cocoon without limit. Normal transcendents can't do that because a living transcendent will die when they go beyond a certain limit of expansion. Their consciousness will fracture once they expand past the limit of their consciousness. They need the comprehension of laws and the bestowal of cosmic energy by the law matrix to increase that limit. 

But he doesn't care about the limit because these souls are already dead. They fragmented again because of his reckless infusion of Origin energy but he didn't mind. He would just graft the resulting fragments and repeat the process to get more fragments. This way, he converted Origin energy directly into soul fragments."

He chuckled. "It is like growing my food. The great mother won't be able to bully me with the number of soul fragments she has anymore. I will catch up to her in time."