What does Ezra 6:22 mean?

They celebrated the Festival of Unleavened Bread for seven days with great joy, because the Lord had made them happy by turning the king of Assyria's heart toward them, so he helped them with the work on God's temple. Ezra 6:22 - Modern Text Bible

(They keep the week-long festival with real happiness, grateful that God moved the king to support them in rebuilding the temple.)