"Heaven and Earth Core..."
The instant An Jing heard this term, he seemed to experience an extremely profound sensation.
It was like falling into a vast and boundless ocean, yet this ocean also appeared empty and overflowing, as real as he was, like the air that needs no breath, like time and space that need not exist, bearing him and being him, above as it is below, within as it is without.
The heart of heaven and earth was both the heart of heaven and earth and his own heart.
If it existed, then so did he.
An Jing shook his head slightly, bringing himself to a clearer state of mind, detaching from that overly grand enlightenment, "Then what use is it?"
"I don't know."
Subdue Evil said it as if it were to be expected, shocking An Jing, "You don't know?"
In response to An Jing's disbelief, Sword Spirit explained, "It's not the kind of 'I don't know' that indicates complete ignorance, but the kind that's difficult to summarize in words."