Markets have moods that last a while, and knowing which one you are currently in changes everything. SeerSignals calls this the regime and shows it as a banner across the top of the dashboard.
Broadly, there are a few. A market can be trending (moving steadily and persistently in one direction), choppy (bouncing back and forth in a range and going nowhere in particular), or highly volatile (swinging violently in both directions). The catch is that the very same trading approach can be a winner in one regime and a loser in another.
For example, a strategy of buy the dips, sell the pops works beautifully in a calm, sideways market that keeps bouncing between a floor and a ceiling — but it gets you steamrolled in a strong trend, where the smart move is to ride the wave rather than keep betting against it.