Price tells you what has happened; sentiment tells you who's winning the battle right now. turns that buyer/seller balance into a continuous, easy-to-read scale.
How to read it
Instead of binary signals, the indicator shows a scale: the higher up, the more buyer dominance; the lower down, the more seller pressure. What matters isn't the exact value, but the direction and the extremes: sentiment turning from an extreme usually anticipates a change in price.
How to use it in practice
Use it as context confirmation: if your trend read is bullish and sentiment follows upward, you have two independent reads pointing at the same thing. When sentiment diverges from price—price rises but sentiment cools—it's an early warning of exhaustion.
When not to rely on it alone
Sentiment is a thermometer, not a trigger. In very strong trends it can stay at an extreme for a long time without price turning. Combine it with structure and context; never trade on a sentiment extreme alone.