Anahata chakra is located in the spine directly behind the heart; though perhaps directly behind the centre of the chest is a more exact description. At first the mental location of the anahata chakra is quite difficult. A useful aid in developing sensitivity to the exact point in the -pine is as follows: place one finger at the centre of the chest; place the other hand behind the back and try to place a finger on the spine at the same horizontal level as the finger in the front of the body. If necessary use a mirror or the help of another person to find exactly the right position. Then apply a greater pressure on the spine with the finger. With the eyes closed, feel the sensation of pressure and try to locate the exact position. With time and practice this will help you to find the exact location of the point of the anahata chakra.
The point on the front of the chest in front of the anahata chakra trigger point is called the anahata kshetram. It is widely utilized in kriya yoga practices. You should be able to mentally locate this point as well as the chakra trigger point in the spine. The following practice will help you to be able to do this.