Bullish and bearish divergences are important technical signals that indicate a potential change in the direction of the market price. They are closely related to stochastic oscillators and momentum technical indicators, which measure the speed and strength of the price movement. Divergences occur when the market price and the technical indicators diverge from each other, meaning that they move in opposite directions. Bullish divergence signals that the downward trend is losing momentum and may reverse to an upward trend, while bearish divergence signals that the upward trend is losing momentum and may reverse to a downward trend.