Emotion follows belief
Can we liberate ourselves from negative emotions, what is emotional freedom? One's emotional reaction to external stimuli is filtered through one's system of beliefs about the world. Alter your beliefs and your emotional response will adjust accordingly. In that sense, some emotions -- such as anger -- can be controlled. The hard part is discovering what needs to be altered to achieve the desired outcome. Emotion follows belief. It's a simple and clear idea on the surface, but hides many layers of complexity the further you dig. It also depends on how some terms are defined, such as "emotion", "belief", etc., so there is much room to quibble about that without even addressing the core idea. It's easy to find examples of this idea in action. Perhaps more difficult is finding counter-examples. Example: Consider a FIFA World Cup game. When a goal is scored, some people are elated, some feel the opposite dejected, and some feel neither.