The certainty we need to understand is actually a kind of 'inevitability in causality.' If you stick to this long-term: entering the market at the right timing when major trends are starting (cause) + strictly implementing defined risk control measures (cause) + pursuing logic-backed high risk-reward ratios (cause), then achieving long-term stable profits (effect) becomes a certainty. The problem for many traders is that they try to find 100% certainty in a 'single trade,' which is mathematically and logically impossible. The strength of professional traders lies in their ability to build 'overall certainty' through a rigorous logical framework, even when faced with 'uncertainty in individual trades.' The market is imprecise, and so is life. We cannot predict exact price points, just as we cannot foresee every encounter in the future. But we can have defined values, a clear logical framework, and a firm risk bottom line. Strike decisively in the 'blurred precision,' and wait patiently within the 'certain logic.'