Why is it that people get jealous? What causes us as humans to be jealous? I decided to look up the definition of jealousy and this is what dictionary.com states: noun, plural jeal·ous·ies for 4. jealous resentment against a rival, a person enjoying success or advantage, etc., or against another's success or advantage itself. mental uneasiness from suspicion or fear of rivalry, unfaithfulness, etc., as in love or aims.vigilance in maintaining or guarding something. a jealous feeling, disposition, state, or mood. I, myself know that I have been jealous before, but I am learning that I don't need to be jealous of anyone. Just because others are more well off than me, doesn't mean that they are actually more better off mentally or spiritually. You don't need money and all the expensive crap to be happy. You create your own happiness from within. Material objects will never make someone truly happy, so why be jealous of those that do have all those material objects. I would...