Meditation slows down your mind. This allows you to become more aware of your thoughts. You start to discover your thought patterns, what you believe about certain things, why you act in a certain way in certain situations.

If you also practice something like loving-kindness (it sounds hippy, but it has scientific backing[1]), it can increase the quality of your relationships.

[1]http://www.emmaseppala.com/18-science-based-reasons-try-lovi...