In the game of trading, one should maintain a clear mind and desires, be calm and composed, and follow the major trends and conditions to manage their positions. In a weak market, leverage the trend to maintain a third of the position; in a strong market, leverage the trend to maintain seven tenths of the position, or it may not be full—like a skilled archer not exhausting the strength of the bow; a full position may lead to being controlled by others. Enter the market by observing the overall trend to determine the situation, then observe the situation to gauge its benefits. Adapt to changes, focus on strengths, act on weaknesses, do not act on minor declines, observe at major declines, easily exit during minor rises, and stop at major rises.

However, trading is about adapting to changes, and the game is about controlling the heart. Understanding comes from long-term observation, and change comes from surprising victories. Do not fear being higher in a rising market, do not be greedy when lower in a falling market. Over time, the mind becomes clear, and the will aligns with understanding and action. Accumulating small victories leads to great victories, ultimately achieving complete victory, returning to the boundless.

The skilled trader observes its shape, discerns its meaning, assesses its trend, and times its actions. Act at the end of a decline as the rise begins, and stop at the peak of a rise as the decline begins.

His heart is as unmoving as a mountain, as unpredictable as water, deeply understanding the mystery of the mutual transformation of yin and yang, and the normalcy of rises and falls. No joy, no sorrow, no stocks, no self. The method of action is no method; the harmony of yin and yang is the key to mastery.