What does Deuteronomy 30:19 mean?

Today, I'm calling on heaven and earth to witness this: I've put life and death in front of you, blessing and curse. Choose life, so you and your children can really live. Deuteronomy 30:19 - Modern Text Bible

(Moses is urging the people to make a real choice. He's saying their future depends on whether they follow God's way or not. It's not just about rules—it's about choosing what leads to life.)