Mo Hua fell into deep thought.
Ordinary Causality Art concerned the success or failure of a single matter, the life and death fate of a single person—a small scope.
But if the matter was important enough, involved many people, and carried sufficiently strong causal force, then it became great causality.
And causality on an even grander scale, tied to the rise and fall of an entire state boundary, even the fate of all living beings under heaven, was what was known as "Heavenly Secret."
People often paired "Heavenly Secret" and "causality" together, but there were actually many differences between them.
Without carefully studying causality, one truly could not make sense of it.
Most people's causality was limited to one person's fortunes, misfortunes, gains, and losses. Fundamentally, it could not rise to the level of "Heavenly Secret."
This was a distinction of grand scale.
Beyond that, at the foundational level, the power of causality was also exceedingly special.
Just as Mo Hua had previously sensed, so-called "causal force" was not purely a cultivation power on the level of "Divine Thought"—
Such as Thought Power, strange power, Evil Thought, Divine Consciousness, and so on.
Nor was it purely a cultivation power on the level of "reality"—
Such as physical strength, Lingli, flesh and blood, and so on.
Based on Mo Hua's understanding of Heavenly Secret thus far, as well as his instinctive intuition, causality was more like a Great Dao power where Divine Thought and reality intermingled.
It possessed a portion of tangible substance, using reality as its medium; it also contained guidance on the level of Divine Thought, using Divine Thought as its bridge.
It was a state in which "substance" and "void" coexisted.
Causality transcended ordinary objective powers, mysterious beyond all mystery.
Yet because it possessed a "substantial" component, it