Trisha KesavanTamil Nadu, India In the 16th century, philosopher Paracelsus wrote about undines as nymphs that gained souls by marrying humans.1 According to German mythology, Ondine or Undine was a water nymph (de la Motte Fouque’s version) who married a knight, Huldbrand, and gained a soul, but would be doomed to die if he showed…