Archetypes can be defined as things that are used as typical examples or in other words, unoriginal ideas that are widely used. We usually refer to them as cliche's.
In the horror genre, other archetypes that I can think is just before the movie ends, the villain/ghost/monster appears indicating that it's not yet the end of the story for our antagonists. Archetypes are used because it has been a tradition or trademark of, in this case, horror films.
B - Sometimes Enaki is Enaki Narok, the Black God, is happy with us and blanketing the sky with dark clouds that pour out raig to nourish the plains.
This exceprt shows the connection between Enaki being happy and then sending the rain - this explains where the rain as well as droughts come from (when Enaki is unhappy)