The Anahata Chakra is the Fourth Chakra, the Heart Chakra. When we listen with our heart instead of our heads we have the ability to tap into anahata sound which is called the unstruck, subtle sound that is often experienced through meditation. It is when you find union with I-AM.
There are many ways to connect with the Anahata Chakra:
-Stay with your feelings and allow them to be their guide.
-Practicing asanas in silence (w/o music) and concentrating on the heart
-Bija (seed) sound for the anahata chakra is YAM, replace OM with YAM
-Placing palms on the heart and just observing how that connection feels