Situated in the spine, behind the sternum, level with the heart, is anahata chakra. The word anahata literally means ‘unstruck’. All sound in the manifested universe is produced by the striking together of two objects, which sets up vibrations or sound waves. However, the primordial sound, which issues from beyond this material world, is the source of all sound and is known as anahad nada, the unstruck sound. The heart centre is where this sound manifests. It may be perceived by the yogi as an internal, unborn and undying vibration, the pulse of the universe.
This chakra is symbolized by a blue lotus with twelve petals. In the centre of the lotus is a hexagon, formed by two interlacing triangles. This is the yantra of vayu tattva, the air element. The bija mantra is yam and the vehicle is a swift black antelope, the symbol of alertness. Anahata chakra is the centre associated with the sense of touch (feeling), the hands (giving and taking), and emotions, ranging from the narrow attachments of jealousy to unconditional love. As this level is purified, the feelings of universal fellowship and tolerance begin to develop and all beings are accepted and loved for what they are.
On the physical level, anahata is associated with the heart and lungs, and the circulatory and respiratory systems. For meditation on anahata chakra, visualize a blue lotus or a blue hexagon, formed by two interlacing triangles, with a tiny, bright flame burning at the centre. Imagine it to be steady and unflickering like a flame in a windless place. This is the symbol of jivatma, the individual soul, the indwelling spirit of all beings which is undisturbed by the winds of the world.
• Information: Asana Pranayama Mudra Bandha by Swami Satyananda Saraswati