𝔗𝔢𝔪𝔭𝔬𝔯𝔞𝔩 𝔑𝔞𝔪𝔢

“The seven vowels have potencies which are efficacious and perfective of divine things. Thus whenever the theurgists are conducting acts of worship they make invocation symbolically with hissing, clucking, and inarticulate or discordant sounds.”
– Nicomachus of Gerasa, Manual of Harmony

“In Egypt the priests, when singing hymns in praise of the gods, employ the seven vowels, which they utter in due succession; and the sound of these letters is so euphonious that men listen to it in place of the aulos and cithara.”
– Demetrius of Phaleron, De Elocutione