A unique cultivation method. Its primary effects are not on physical strength but on enhancing mental faculties: it increases vitality, sharpens the mind, improves the five senses (sight, hearing, etc.), and refines触觉 (tactile sense). The energy it generates (pseudo-true qi) flows through meridians but lacks the direct combat power of normal true qi, instead heightening sensory perception. Reaching the sixth layer provides a significant boost in energy flow strength.