Lin Yuan had pondered the link between source-type items and the dimensional world ever since he first found out that source-type items came from the dimensional hub.
The main world had never been able to come up with an accurate answer to this question.
Lin Yuan had even intentionally asked the Moon Empress about this when he first became her disciple. But all she did was smile and go on to explain the relationship between the dimensional hub and the dimensional world.
He did not know if the Moon Empress was unsure of the answer or if she felt that he had been so weak that there was no need for him to learn such knowledge.
This question had always troubled Lin Yuan.
At first, he had only been curious about the relationship between the dimensional world and source-type items.