The position marked by the purple circle is the lifeline of $ETH . The position of the lifeline varies in different periods, and based on the position of the lifeline, one can judge pressure or support. For example, currently, K is rebounding at the bottom! In the 15-minute timeframe, the lifeline represents the first level of pressure, while the 30-minute timeframe represents the second level of pressure! Each pressure level's lifeline will undergo a pressure test! When the bottom rebounds to the lifeline, one must pay attention to the death cross at the turning point! The bottom rebound is considered a counter-trend position, while the death cross is a trend-following position. Conversely, when the lifeline is below and providing support, it’s viewed in the opposite way!