It's important that we understand how our emotions work. Sometimes emotions give us valuable information, and sometimes our emotions don't behave the way we want them to. A prerequisite for individually understanding anything about our emotions is the ability to notice and identify emotions. I sometimes find this difficult.
One piece of advice I get is to notice where different emotions are felt in my body. A graphic designer asked 250 people to draw where they feel different emotions, and superimposed the drawings. The results are evocative.
I found it interesting how love seemed to be diametrically opposed to anger- anger as a very cranial (and hand) centric emotion while love seemed to be the most whole. I think it says something about the emotions being either very individualistic or shared- the love one's outline in places almost looks like it's expanding the character.