As a traditional fitness qigong, the essence of Baduanjin lies in a series of moves and movements to achieve the purpose of conditioning the body, enhancing physical fitness, and preventing diseases. Below, I will elaborate on the essence of Baduanjin from the following aspects. 
First of all, Baduanjin focuses on the overall conditioning of the body. Through a series of movements, it stimulates various acupuncture points and meridians of the body, promotes the circulation of qi and blood, and strengthens the body's immunity. These movements include push-ups, squats, horse steps, bending overs, etc., covering the main parts of the body and meridians, helping to tone the body in a comprehensive manner. Secondly, Baduanjin pays attention to the coordination of breathing. In the process of Xi, breathing and movement are required to cooperate with each other, so as to breathe deeply, slowly and long. Through the cooperation of breathing, the internal qi of the body can be better mobilized, the internal force of the body can be enhanced, and the body's ability to resist diseases can be improved. 
In addition, Baduanjin also pays attention to spiritual regulation. It requires the Xi to maintain a calm mind, eliminate distractions, and focus on every movement and breath. Through mental regulation, you can better relax your body and mind, relieve stress, and improve your body's health. Finally, Baduanjin also pays attention to the norms and rhythm of the movements. It requires the practitioner to practice Xi Xi according to the prescribed movements and rhythms to avoid irregular movements or chaotic rhythms. Through standardized Xi, you can better play the effect of Baduanjin and achieve the purpose of conditioning the body and enhancing physical fitness. 
In short, the essence of Baduanjin lies in the coordination of a series of movements and breathing to achieve the purpose of conditioning the body, enhancing physical fitness, and preventing diseases. At the same time, it also pays attention to the regulation of the spirit and the standardization of movements, requiring Xi to maintain a calm state of mind and correct rhythm of movements. Through long-term consistent Xi, you can effectively improve the health level of the body and enhance the body's immunity.