What does Matthew 5:22 mean?

But I’m telling you, even if you’re just angry with someone, you’re already facing judgment. If you insult your brother or sister, you’re answerable to the council. And if you call someone a fool, you’re in real danger of hell. Matthew 5:22 - Modern Text Bible

(He’s raising the bar: it’s not just about actions, but about your heart and how you treat people. Contempt and anger matter just as much as violence.)