Ji Tianqi's extraordinary encounters/props, as mentioned, were soon traced back to their origins in the real world—novels and television dramas.
"Holy Relics first appeared in the Nameless Ancient Tomb as a piece of yellow crystal, covered in bloodstains and crystal-clear mottled patches. Its primary function is to store the inner strength and essence of martial artists, with no known limits.
That is to say, once Mr. Ji acquires the Holy Relics, he could transfer all his power and corresponding essence into the Holy Relics, then continue to devour energy using the Beiming Skill, transforming it into his own inner strength.
In this repeated process, the Holy Relics might even store thousands to tens of thousands of years of power. Once Mr. Ji breaks through to the Innate Realm, these powers could become his own…"
The seminar on the Holy Relics took place after Ji Tianqi fell ill/crossed over.
Thus, Ji Tianqi neither knows about it nor needs to know.