When you breathe ,do you notice if breath is moving through the mouth or the nostrils? Does one nostril take in more air than the other nostril? While practicing yoga the breath may be smooth and soft. During a challenging pose the breath could be fast and labored.  By opening and uplifting our torso while sitting or standing tall and straight, we invite the breath in and tend it to it like a treasured guest. It is important to notice when the breath comes effortlessly and when breathing is  difficult in yoga practice and our daily lives.