The real power of Yoga lies in the ability to access, nourish and vitalize the concept of Prāṇa. Prāṇa also called “vital-life-force,” is the most subtle element of our human construct. It not only keeps us alive, but also influences our ability to perceive and react to our environment. It is also among the powerful phenomena that aids us in proceeding deeper in our spiritual journey. This is the reason why many Yogins developed methods and tools to influence Prāṇa in a positive way.