Jealousy is felt because we are human. The world today is entailed with greed and people's thoughts are being manipulated by their own perspectives, such as their opinions and beliefs. Greed can either be materialistic on non- materialistic. Whatever it is that is causing the greed causes the jealousy. This is because individual perspective on what one thinks is important to them plays a big role on what triggers the jealousy, like when another person possesses what, more or better than what one already has.