Fu Chen closed his eyes and slowly focused his consciousness inside his sea of consciousness. There were several things stored inside his sea of consciousness and it wasn't just his soul.
Even the Supreme Sword Heart Law was stored inside it in the form of a book. He walked up to the book that was beneath a sword. When he tried to touch the book, the sword trembled.
But, after he touched a book for a moment, the sword slowly calmed down. He pulled the book in his arm and turned the page. The first page was about Sword Energy.
Sword Energy is the energy formed out of Sword Will. Without one's Will to cultivate a sword Dao, a person can never achieve Sword Energy. It wasn't that difficult since all you need is just the Will.
But, even so, very few people actually had the Will to cultivate the Sword Dao. Because Sword Dao was considered one of the hardest Dao to cultivate.
