How Important Is Breathing and Meditation in Your Life?

Meditation is a wonderful tool to put in your life. We actually teach it in our high school course to optimize brain function. And you don't have to do it for a long time. I studied and published work on a Kundalini yoga form of meditation called Kirtan Kriya. It's a chanting meditation, which means you have to use breath to do it. Do you use this in your daily practice? Breathing or meditation?