Emotions are fluid. They come in different forms and shapes. They could either stay the same for a long time, or change into another in a blink of an eye. They can even mix with one another to form a whole new different substance. Some may seem stable, but in truth, they are volatile. As creatures full of different emotions churning inside them, humans are capable of feeling and acting on a lot of things. In short, it may not seem like it, but emotions are what drive humanity into action. Wouldn't it be interesting if one could just... bottle them up?