What does Ezekiel 40:1 mean?

In the twenty-fifth year after we were taken away, at the beginning of the year, on the tenth day of the month—fourteen years after Jerusalem fell—the Lord’s hand was on me, and He brought me there. Ezekiel 40:1 - Modern Text Bible

(Ezekiel sets the scene: it’s a specific date, long after the exile began, and God is about to show him something important.)