 Syaksa believes that the religious character of the Fish Speakers is slowly being devolved under Leto II.She further attributes to him a motive based on the concept of hydraulic despotism, in which a government structure maintains power and control through exclusive control over a basic resource needed to live (in this case, melange), proposing that he is building the Empire toward an even greater dependence on the spice.Tamalane is one of the Duncan Idaho ghola's first chief instructors on Gammu in the events before "Heretics of Dune" (1984).