What does 1 Samuel 9:19 mean?

Samuel answered, 'I’m the seer. Go ahead of me up to the shrine. You’ll eat with me today, and in the morning I’ll send you on your way and tell you everything you’re wondering about.' 1 Samuel 9:19 - Modern Text Bible

(Samuel reveals who he is and invites Saul to a special meal, hinting that something important is about to be revealed.)