Poluozhajieluopoye!
When Shen Yue heard Shui Qingmeng say these words, he immediately realized—Shao Qingyun was silently chanting these same words to Fang La.
In fact, when Shao Qingyun was sitting cross-legged silently chanting, he was always repeating this phrase.
A single incantation, repeated many times.
Of course, Shen Yue also chanted spells.
In fact, practitioners often chant spells for empowerment.
However, practitioners' understanding of incantations is vastly different from the secular view.
In secular terms, sayings like "draw a circle to curse you" or "on behalf of the moon I'll punish you" are more like children's tricks.
Arrogant words like "Heavenly Dragon King, earthly human king; only I am king" have some similarity to incantations because they include intent, but these still aren't incantations. Instead, they are expressions of worldly desires.
BT often uses intensified desires to strengthen their own obsessions.