Most yoga practices contain elements of Kundalini yoga. There is some confusion about Kundalini and its relation. Most beginners to this practice will only be interested in this yoga pose of Kundalini Ascension.
All yogas pursue the ideal of perfect enlightenment. You can check out the various Kundalini yoga poses which are great for improving your personal life. The literal meaning of Kundalini (in Sanskrit) can be translated as "twisting physical energy" or "unconscious, instinctive, libidinal (Shakti) force" located (folded) at the base of the spine.
It is the spiritual energy or life force that is usually conceptualized as a snake. Hence the name – Kundalini (or Kundala) – "the tortuous, crooked or spiral". Kundalini Yoga excites this sleeping Kundalini Shakti (from its tortuous base) up the body, through the 6 chakras (which run through the main channels of pranic energy in the body) to penetrate the 7th chakra (crown), strength, character, and awareness.
This is called the "snake power" and is described by Nirmala Srivastava as "the residual power of pure desire". The actual location is very difficult to explain, some say it is somewhere between the rectum and the navel while others say it is in the sacrum.
We all feel it to some degree, especially when there is an increase in danger or excitement – perhaps in connection with the "fight or flight" adrenaline response. However, after true enlightenment and self-actualization, the body becomes more active and energetic, the face is younger and the personality is beautiful and attractive.