When the Moon Empress saw Lin Yuan take hold of the sacred source lifeform, she said earnestly to him, "Three years later, I need to be by your side to protect you if you plan on attempting to allow your soul to contract a sacred source lifeform again."
The Moon Empress thought back to when the dimensional rift had just spat out Lin Yuan and how the sacred source lifeform had cataclysmically shattered his soul.
The Moon Empress had made a point of saying that she needed to be by Lin Yuan's side the next time he wanted to contract a sacred source lifeform. Still, she was essentially saying that she needed to be there to protect him in order to increase his chances of contracting his second sacred source lifeform.
Souls were different from fate.
A person could lack talent, but as long as they worked hard, they could very well achieve the same results as a more talented person.