Luo Chen couldn't immediately breakthrough into another realm. He had to fully get used to the strength he currently has.
So, he will move to Law and Dao.
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Law and Dao are different from each other.
Law is something that has existed. It was not created by anyone. It has just been there. There are many laws, like the Space Law, the Fire Law, and many more.
Dao had different laws. Dao were made by living or dead people to reach the apex of something the world has to offer, or are derived from other laws to create a Dao. Dao normally has more potential and strength than Law. But in the end, if laws don't exist, there will be no one living or dead to create them. There are many Dao, like the Dao of Reincarnation, the Sword Dao, and many more.
Both of them are categorizes by Lesser , Normol, Greater, and Transcendence.
In terms of law, there are four types: lesser law, norol law, greater law, and transcendence law.
In the terms of Dao, there are Lesser Dao, Normol Dao, Grater Dao, and Trascendence Dao.
Both Law and Dao have nine stages. First being the weakest and ninth being the strongest,
Also, there are no minor stages between two stages.
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One had to know that the difference between each stage or realm is greater than that between heaven and earth. So, unless people have cultivated in more than one thing, they could forget winning or killing someone who is a major realm or stage above them.
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Like soul refinement, Law and Dao both needed talent to comprehend and understand things.
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Luo Chen is going to comprehend Space Law and Sword Dao for the time being.
Luo Chen has The Cube of Space; it is the creator of space, and with it he can easily comprehend Space Law.
Luo Chen also had two 8-star sword techniques, so he is obviously going to practice Sword Dao.