What does Numbers 24:3 mean?

He spoke this message: This is what Balaam, son of Beor, says—the man whose eyes are open, who hears God’s words, who sees what the Almighty shows him, falling down but with eyes wide open. Numbers 24:3 - Modern Text Bible

(Balaam introduces himself as someone who truly hears and sees God, emphasizing the seriousness of his message.)