What does 1 Samuel 10:5 mean?

'After that, you’ll come to Gibeah of God, where there’s a Philistine outpost. As you approach the town, you’ll meet a group of prophets coming down from the shrine, playing harps, drums, flutes, and lyres, and they’ll be prophesying.' 1 Samuel 10:5 - Modern Text Bible

(Saul will encounter a group of prophets, showing that God’s Spirit is active and that Saul is entering a new spiritual reality.)