Why do we say that you need to refer to the section chief's point? By comparing the trends of Figure 2 and Figure 3, you will find that $SOL is following the path I drew.

First, there was a bounce at the support level of 137, and when it broke down for the second time, it directly fell to 131 before bouncing back up. This is the application of key points; if you don't understand technical analysis, you can't draw such precise charts.
You have seen my analysis, at least you have an idea in your mind, you won't go short where you shouldn't, and you won't go long where you shouldn't. This is the significance of reference.