Hela is a fictional character from Marvel Comics and appeared in the Marvel Cinematic Universe (MCU) film "Thor: Ragnarok." In the film, Hela is portrayed as the Goddess of Death and the older sister of Thor and Loki. Her anger and hatred stem from several factors:
Exile and Imprisonment: According to the movie's storyline, Hela was Odin's firstborn and fought alongside him in numerous battles, conquering and expanding Asgard's empire. However, when Odin became remorseful for their brutal methods and ambitions, he decided to put an end to their conquests. He exiled Hela to a distant realm and concealed her existence from the rest of Asgard.
Forgotten Legacy: Hela resents the fact that she was erased from Asgardian history, essentially wiping away her role in building the kingdom and her contributions to their success. This creates a profound sense of betrayal and fuels her desire for vengeance against those who have denied her rightful place in Asgardian lore.
Ambition for Power: As the Goddess of Death, Hela is immensely powerful, and her desire for dominance and control over the realms makes her seek the throne of Asgard. When she returns to Asgard following Odin's death, she believes it is her birthright to rule, and she is willing to go to extreme lengths to achieve this goal, including unleashing destruction and death upon her former kingdom.
Nature of her Power: Hela's powers are derived from her connection to death and her ability to draw strength from it. This might have an impact on her emotional state, pushing her towards darker emotions such as anger and hatred.
As a character, Hela embodies themes of family conflict, betrayal, and the consequences of ambition and unchecked power. Her anger and hatred play a crucial role in the events of "Thor: Ragnarok," driving the central conflict between her and Thor, as well as her desire to conquer Asgard and expand her influence over the realms.