Concept of Support and Resistance
Resistance: When the selling pressure forcefully interrupts the uptrend, when the market price reaches a certain level, it seems to create a pressure line that affects the stock price from continuing to rise, acting as a resistance line, which we call a resistance line or resistance level.
Support: When the buying pressure forcefully interrupts the downtrend, when the market price reaches a certain level, it seems to create a support line that affects the stock price from continuing to fall, acting as a resistance line, which we call a support line or support level.