The power behind bitterness is greed and emptiness. Greed is the passionate pursuit of more, just for the sake of having more. It is an insatiable longing that cannot be satisfied. It is a loud, demanding hunger. A hunger that does not go away. It desires more food, money, affirmation, affection, power, knowledge, status, or comfort. It is an inability to experience contentment with what you currently have. Greed is an intense pang of hunger with unattainable peace. The Merriam-Webster dictionary definition of greed is “a selfish and excessive desire for more of something (such as money) than is needed, motivated by naked ambition.”