One of the greatest benefits that we get out of Yogasanas and Pranayamas is Kundalini Energy. There are 6 Plexuses in our body. The first plexus is called Muladhara and it is situated just above the 'Suli Munai' which is the bottom tip of our Spinal cord. Each plexus has more than one responsibility. The first plexus Muladhara has 4 responsibilities to take care of. It takes care of all the actions happening below our hip like walking, erection,ejaculation..etc. When a yogi who has attained certain level in the Yoga Journey or Spiritual Journey will have his Spiritual Energy activated. This Spiritual energy is called the Kundalini Energy. It will reside at the Muladhara Plexus of the true Yogi. With his daily Anushtanas (Yogasanas/Pranayamas and Meditation) the yogi would be able to keep increasing the level of his Kundalini energy. The Yogi can use this Kundalini energy for various constructive purposes. This energy is very powerful.