While we strive to thrive by using the strength of positive psychology, it's important to note that our negative emotions are part of the recipe towards flourishing with Enriching Psychology... Our negative emotions are indicators to us that something is wrong and thus has to change. It's the emotional equivalent of our pants getting tighter to remind us to skip the nightly cheesecake desert.
In this Wall Street Journal article, Elizabeth Bernstein explores which negative emotions we can harness, and how to turn them from negative into a catalyst for positive action.
http://www.wsj.com/articles/why-you-need-negative-thoughts-1471881692