'Spiritualist!' Such a novel concept invigorated Wei Wuyin's mind, expanding his horizons and opening up pathways in his train of thoughts that he didn't know existed. Yet he was stumped almost immediately, finding some inconsistencies with this Spiritualist concept.
From his currently limited knowledge, spiritual energy was the combination of physical, mental, and essence energies filtered through the soul that was uniquely extracted during the Qi Condensation Realm process, the moment one established their Spirit of Cultivation. Then, spiritual energy was reintroduced in a balanced ratio of physical, mental, and essence energies to create Metaphysical Qi, the fundamentals of a cultivator's strength.
If one replaced their physical and mental energies with spiritual energies, wouldn't there be some confusing overlap? How could Metaphysical Qi be produced if it lacked these crucial components?