what are tiresias and cadmus doing at beginning of the play
The Bacchae Dionysus exits to go into the mountains, and the chorus enters. They dance and sing, celebrating Dionysus and adding details of his birth and the Dionysian rites. Then Tiresias, the blind and elderly seer, appears. He knocks on the palace doors and calls for Cadmus, the founder and former king of Thebes. The two venerable old men are planning to join the revelry in the mountains when Cadmusâ€™ grandson Pentheus, the current king, enters. Disgusted to find the two old men in festival dress, he scolds them and orders his soldiers to arrest anyone engaging in Dionysian worship. He wants the "foreigner", whom he doesn't recognize as Dionysus in disguise, to be captured. Pentheus intends to have him stoned to death.[13]