The slow-motion practice of Taijiquan, operationally, cultivates the cognitive perception of fascia tension as it is being harnessed to discipline body motion to be in accord with Yin-Yang Balance. The ideal motion that results, bestows liveliness of change and harmonizes body momentum,the hallmarks of maneuverability and force potential for performance. The paper puts forth the proposition that the manifestation of Qi in Taijiquan is primarily the cognitive perception of fascial tension in the functional efficacy of bipedal balance for performance. Though the cultivated cognition may be subjective, the process of Qi nurturing is grounded on the reduction of the errors of imbalances, which carves a practice path to balance with tangible effects. The force that arises from body motion so imbued with Yin-Yang Balance, is of the phenomenon of internal strength or neijin—consummate, of the right force vector in spontaneous response and rooted in balance. Taijiquan practice nurtures Qi for both health wellbeing and neijin as the body's core strength, depending on the practice efforts put in.