What does Philippians 3:8 mean?

In fact, I see everything else as a loss compared to the incredible value of knowing Christ Jesus my Lord. Because of him, I’ve let go of everything else—I see it all as garbage—so I can have Christ. Philippians 3:8 - Modern Text Bible

(Paul is clear: nothing in his past or present compares to the worth of knowing Jesus. He’s willing to lose it all for that relationship.)