Yogi Bhajan, who introduced Kundalini Yoga to the United States, said “there is not death except by your own ego, and your own negativity, which reduces the voltage of your life force so your circumvent field becomes weak and death creeps into your body.”
Our own habits of possession, constriction, anger, tension, and attachment set up energy patterns within the body that disrupt the normal flow of vital energy. This opens the door to disease, both physical and mental.
Yoga and meditation are very powerful readjustment tools; relaxing the nervous system, moving energy into closed spaces and restoring joy in mind and heart. Since we are all products of our habits and since few of us are without ego, it is important to readjust the flow of energy on a regular basis.
Source: Creative, Sacred & Invincible Kundalini Yoga as taught by Yogi Bhajan