A bullish engulfing pattern is a two-candlestick reversal signal that appears after a downtrend and suggests buyers are taking control. The first candle is small and bearish, showing weak selling pressure, while the second candle opens below or near the prior close and closes well above the previous candle’s high, completely “engulfing” it. This strong bullish candle indicates a sharp shift in sentiment, as buyers step in aggressively and overpower sellers, often hinting at a potential trend reversal or the start of an upward move.