The Chakras, or "points or Psychic Energy" as they are known here in the West, are specific energy points that are scattered throughout the body. The major chakras are: Crown (located on top of the head), Front (located in the middle of the forehead and is usually called the third eye), throat (located in the neck), heart (located in the chest), Solar Plexus (located in the Abdomen ), Sacral (located in the pelvis), and Base (located in the backbone).
That audio was created to stimulate the seven main chakras existing in the human body through the head chakra (Sahasrara) to the backbone (Muladhara). At 44 minutes long, your body will be completely psychic stimulated by isochronic tones created for this special purpose. Make good use!