We all know that feeling. That nasty, burning sensation in our stomachs when we see someone else who has what we want. When we feel like we can't possibly be happy until we have what they have. Envy is one of the most toxic emotions out there, and it's something that we should all strive to avoid. But before you start thinking about how terrible envy is, think about this: envy can actually be a good thing. Yes, really! Listen in to find out why you should be grateful for envy.