The Conscious and the Unconscious - King and Queen
In traditions, the king symbolises the conscious and the queen the unconscious. The goal for the human being is kingship in life, i.e. conscious, self-effective life through the integration of the unconscious into consciousness(Holy Wedding).
King Consciousness - the Good King and the Tyrant
The "good king" stands for the loving consciousness, the faith. He takes responsibility and protects the country from the enemy. The "evil king" is the power-driven, despotic ruler who pursues his own goals. He is an image of the ego that seeks power and enslaves man by binding him in bondage through the urges. The result is oppression and domination through fear and lies for the person himself and also for those around him.
The Queen - the "good" and the "evil" unconscious
The "good queen" who gives birth to a child symbolises the "good" unconscious that obeys the loving consciousness and transforms its impulses into new reality "ready to serve" (symbolised by the child that is born).
However, the unconscious as "receiving matter" also reacts to negative impulses. Unkindness and suppression give birth to correspondingly "bad" reality: negativity of all kinds such as rebellion, indignation, illness and death. [S. The Great Feminine, Life Itself, in the Underworld.]
In traditions, the death of the "good queen" symbolises the dying of love. This already becomes a theme in the Sumerian mythology of Inanna, the goddess of love. Thus the "good queen" is replaced by the "evil queen" who lives in the grip of ego pride, power, vanity, hatred and murder. As the "evil fairy", "queen of the night" or ruler of the underworld, she symbolises the rule of the urges.
On the two forces in detail: