Becoming aware of the breath
Breathing is perhaps the most important thing we do. Without fresh oxygen the body can only survive a few minutes except under rare and unusual circumstances. Yet the science and art of breathing is completely unknown in the West. There are no breathing classes taught in schools yet the ancient sages discovered that breathing affects the mind and so proscribed ways of breathing to counter habitual practices.
Sit in a chair with your back upright yet relaxed with your feet flat on the floor. Place the hands in a comfortable position and close the eyes and do nothing but watch the breath as it flows in and out of the nostrils. Keep your atention on the breath as it flows in and out of its own accord. If you find yourself thinking, gently let the thoughts go and return the attention to the natural flow of breath.