To understand candlestick patterns, one can start from these aspects. First, look at the color: a bullish candle (red or hollow) indicates strong buying pressure and a rising market, while a bearish candle (green or solid) indicates strong selling pressure and a declining market. Next, observe the size of the body; a large body signifies a clear upward or downward trend. Then, examine the length of the shadows: a long upper shadow indicates strong selling pressure, while a long lower shadow indicates strong buying pressure. Among common candlestick patterns, a doji suggests a balance between buyers and sellers, indicating uncertainty in price movement; a gap reflects changes in market sentiment. However, it is essential to combine analysis with trading volume, moving averages, and other tools for a comprehensive judgment of stock price trends.