As for the likes of spellcasting, there's even less to say.
Just ritual incantations alone, even if you set up the rituals correctly and recite them, are basically useless.
Not to mention the fire control spell before.
Previously, Lu Yuan had seen in the Taoist Classics various spells claiming to summon ghosts and gods, ward off water and fire, control flying swords, and so on. However, when he tried to replicate them, none of them were effective.
It's the special rituals that, when set up, can help calm the mind and better comprehend Dao Law, improving one's state of mind, which can be considered somewhat useful.
However, even though these spells, instrument tracks, and the like in the Taoist Classics aren't of much use, it doesn't mean these are false or deceptive.
Lu Yuan feels that the Taoist Classics may indeed be real, and the spells and rituals mentioned within are also genuine.