"People abide by the law, abide by the law, abide by the law, and be natural." These four sentences are not only the law of being a man and doing things, but also the law of cultivating truth and proving truth. This is a secret language that is too difficult to travel through the ages and is the essence of Laozi's thought. The so-called "law" can be used as a verb, meaning imitation and learning. How to regulate the earth, heaven, Tao and nature? Since ancient times, many people have elaborated and explained, but from different angles, understanding can be said. However, no one has really analyzed it from the aspects of human life science research and practice of repairing truth. Ling Xuan's Law of Truth holds that the truth expounded in these four sentences is the four stages of returning to nature, which directly explains how people return to nature and how people merge with nature, and profoundly reveals the law of repairing truth with highly summarized and incisive language. This theoretical system of congenital Dafa can be divided into five stages: "My mother, the land of man, the heaven of man, the way of man and the nature of man". If analyzed from the inside of the work, it can also be called: "I am the law to the mother, man is the law to the earth, God is the law to the sky, the fairy is the law to the Tao, and the saint is the law to nature." This explains the differences in levels and grades of self-cultivation in more detail and accurately, and describes the process of the integration of heaven and man from acquired to innate, and from low level to high level. Before entering the stage of "people learning from the earth", there must be a process of "I learn from my mother". The human body is the acquired body formed by parents' blood. It obtains the innate truth from parents and holographically inherits the genetic information of recessive physiological tissue structure in parents' line. After being pregnant in October, my mother was born and came to earth. Through breastfeeding, the development process from infants, children, teenagers to young people has been completed. It can be said that everything in the human body is given by parents, born from parents' affection and raised by parents. As Teacher Kong Jing said, "Bodhi Youqing Zen's parents once thought of human form. Only when people get the word can Hongzhi be promoted to Yuncheng. " After people are born, they change from nature to nurture. The weariness of the world and the loss of desires and delusions make the congenital conditions of infants gradually disappear. After middle age, the innate truth has become incomplete. To restore human life to its original state, only through cultivation can the quality of life be gradually restored to the original state of the baby before the mother died. To cultivate "I teach my mother", we should imitate the kindness and love of motherhood in nourishing the heart and body. Motherly love is a great virtue. We should care for all beings in the world as much as mothers care for their children, and love everything, and be a truly kind, kind and beneficial person. Practitioners should inherit the kindness of their parents, constantly overcome human selfishness, complete the transformation of acquired subjective consciousness, and complete the process of "law in mother" in the field of ternary regression and three-source reconstruction. At the same time, in terms of life and body, after repairing the loopholes, life reconstruction is gradually completed, reaching the congenital dry and healthy state in the mother's uterus. "Man governs the land" is the second step to repair the truth. How can people imitate Mother Earth? The earth carries everything, undertakes everything for us and provides everything. The survival of human life depends on the earth. What you eat grows on the ground, and what you wear is born on the ground. Everything you need for food, clothing, housing and transportation comes from Mother Earth. But what does man give back to the earth? It's just sewage and feces. After death, dirty and smelly rotten pus and bones are buried on it, which destroys and pollutes her body. People treat the earth like this, and the earth has no complaints. It not only enables all things to survive, but also bears the sins of all things. Shouldn't people imitate the great spirit of selflessness and omnipotence of the earth? The hexagram "Kun" in the Book of Changes describes the greatness of the earth as "straight", "square" and "big". The earth will always walk on the road, straight and inclusive, and will not change its virtue. That is, what Buddhists call a "generous and broad Buddha". Humans should take the earth as an example and learn from the diligent spirit of Mother Earth. The earth is running all the time. As long as you don't move every minute, mankind and everything are finished. Humans should follow the example of the earth, as the Book of Changes says, "Heaven is healthy, and gentlemen are constantly striving for self-improvement." Heaven and earth are always alive and moving forward, so people should follow its "virtue" of going forward bravely, be as broad-minded as mother earth, and give human beings and everything a living environment and conditions to raise their lives with generous kindness. In the embrace of Mother Earth, human beings have completed the course of their own lives, and the kindness of Mother Earth is boundless. However, human beings have no respect for Mother Earth, can't feel the kindness of Mother Earth, destroy the ecological balance of the earth, plunder the resources of the earth crazily, and cruelly hurt the life of the earth, which is equivalent to digging the heart of Mother Earth. Authentic virtue, quiet and gentle, broad and generous, can harvest grains, tap springs, load everything, raise a group of students, and work without regrets. It is a great virtue that Mother Earth makes contributions without relying on them and cares about everything without returning them. Human beings stand tall, blessed by heaven, nourished by the aura of mother earth, and can't live without the embrace of mother earth for a moment. Therefore, we should take the mother's quiet virtue as an example, cultivate the mind and cultivate the nature, without delusion, immobility, fantasy and inaction. Follow the true law, get the true and quiet noumenon of Mother Earth, cultivate one's morality, restore life, return to the soft and quiet state, and complete the second step of returning to nature. The earth is a huge system, with mountains, rivers, everything in the sea, and many invisible structures, the central axis of the north and south poles, and the core of the earth, all of which correspond to the human body. Therefore, in order to restore the innate nature of the human body, it is necessary to make the physiological organization structure in the body follow the example of Mother Earth, modify the meridian system, meridian system and shafting, and make them vibrate at the same frequency as Mother Earth and Xuanyuan qualitative system. Only in this way can we transcend the bondage of the earth's gravity and, like Mother Earth, continuously obtain energy from the universe.