So what is the fundamental of trading in the currency circle, especially in contract trading, and how can we get the results we want? The academicians in the currency circle have been trading for so many years to tell you that the fundamental of trading is not to make money, but to survive. This is why my article begins: A warrior who strives to protect leeks is a truth. I hope everyone can survive in the currency circle, not how much money can be made in the market every day, but that you have always been in this market. In any environment, survival is the first priority. In the field of trading, many of our thoughts have been led into misunderstandings. The market or some people in the market need a large number of people to dream of getting rich overnight and a large number of people to trade frequently. In fact, getting rich overnight is rare, and short-term trading is almost impossible to make a profit. Therefore, thinking about how to make money safely and designing a trading system based on security is the fundamental of trading. To put it simply, we speculate on contracts, and finally speculate on philosophy; you will find that what we speculate is actually philosophy, psychology, pattern, and a dialogue between ourselves and our hearts. It is the collapse of Mount Tai in front of us without making a sound, and it is also the temptation that is not moved. If you can't comprehend it, then all kinds of interference and disturbance will control you at all times, and all kinds of "traps" are in front of you. Those who can achieve great things in the stock market are often the ones who have mastered the physical, mental, spiritual and intellectual aspects.