Through analysis, it is preliminarily concluded that its connotation is harmony of yin and yang, self-cultivation and harmony; Its principle is to govern by doing nothing and be loyal to nature; Laozi's "noble and gentle" way of keeping in good health lies in three aspects: moral sentiment, treating people with things and guiding gentleness, which makes us understand the way of heaven and earth and have great virtue, thus guiding everything in the world externally and being gentle internally according to the way of living. Laozi's thought of "being gentle and noble" had a far-reaching influence on Huangdi Neijing and later health-preserving works, covering the general purpose of health-preserving, even including some aspects of reasonable methods and prescriptions. Laozi's "noble and soft" health care thought has a profound understanding of life, so it conforms to medical principles, can guide health care and is helpful to clinic.

Nowadays, many health preserving theories are popular, but they pursue physical strength excessively, while ignoring the inner qi and softness. Laozi's "noble and soft" health care thought can just make up for this bias. Combining rigidity with softness, physical and mental health is the more moderate way to keep in good health. Not only that, at present, people are generally under great pressure and nervous. Laozi's idea of health preservation has certain value and significance in physical and mental health, which is of great significance in correcting the bias of health preservation, establishing the concept of combining rigidity with softness, and providing positive and promising methods of physical and mental rehabilitation, thus playing a very important role and value in building a harmonious society.

It provides a useful reference for popularizing the traditional ideas and methods of health preservation in China, establishing a relaxed concept of work and support, and building a harmonious society between individuals and society and nature. In addition, it is helpful for people to return to pay attention to China's traditional health-keeping culture, to meet the eastern and western cultures, to meet and connect the health-keeping cultures, and to serve the contemporary health care. Laozi's "noble and soft" thought is superior to Xia, Shang and Zhou dynasties and their ancient cultures, especially the matriarchal social culture. "Combining rigidity with softness" is a symbol of the infinite vitality of Laozi's Tao, which stems from a profound insight into life and shows people the way of survival of all things in the universe. The view of life that things are strong and old is Lao Zi's summary of the natural law of life and death in heaven and earth.