How does the description of the being into which Mrs.Whatsit is transformed compare with an encyclopedic description of a Greek centaur?

Mrs. Whatsit’s transformation into a being resembling a centaur evokes the mythical creature's half-human, half-horse nature, emphasizing a blend of human intellect and animalistic power. However, unlike the traditional centaur, often depicted as embodying both wisdom and wildness, Mrs. Whatsit's form suggests a more ethereal, cosmic essence, reflecting her role as a celestial guide rather than a warrior. This contrast highlights themes of transformation and the intersection of the mundane with the extraordinary, diverging from the centaur's rootedness in human conflict and mythology.