Breath work is such an essential part of our Yoga practice. Although pranayama itself isn't as simple as breathing or doing deep breathing exercises, these are both a great start to having a pranayama practice. The practice of pranayama to me is the practice of using the breathe to heal your insides. People often use deep breathing to calm themselves. It heals your emotional insides...breathe is what makes us alive and in breathing...we are keeping our physical body alive and working. Breathing helps us to flow through movements in our asana practice.