Ab, Ib, Yb or Haty are Egyptian words which signify the Heart, or what we Ophidians call the Waters, which permeates the Khat (physical body). The compliment of the Ab (Waters) is the Ka (desires, Fires). Both the Ab and the Ka are the most immediate vehicles of communication between the Ba (Persona) and the Khu (Spirit). See also Membra Animae.