According to the survey, the whole meaning of trading is to conform to the market, and the advantages and disadvantages of traders' behavior relative to market trends correspond to their own gains and losses. The market does not owe anyone a penny, and the trader's income must be the return given by the market when the trader acts correctly. When the market direction is clear and swept away, it belongs to the trend state and should chase up and kill down; When the market direction is unclear and inconclusive, it is in a state of equilibrium, and should be sold on rallies or bought on dips according to the basic trend direction. Different states adopt different strategies. If the market has formed a trend, follow the trend instead of just guessing where the market will rebound and adjust it in place, which will put the cart before the horse.