(Atman), which is the heart, according to verses 12.15–22, the fire located in the region of Susumna, which is between the eyebrows glows. These exercises, which stimulates the heart with vital air and fire, lead to the perception of light internally and externally. At this stage one should behold with the mind's eye, the fire-like glowing moon in the forehead, and meditate on the inner self in the Chitta (mind). One distinctive feature of the Yoga Yajnavalkya is that kuṇḍalinī is mostly described as a blockage that prevents prāṇa from entering the suṣumnā and rising. This was the main textual basis of the teachings on kuṇḍalinī by T. Krishnamacharya, who is often called 'the father of modern yoga'. Verses 12.23–31 state that the lingasharira, which is the subtle body that is not visible, glistens in the central region of the body or the heart or the forehead. This shining Shakti (force, energy, power), translates Bhattacharya, is realised by the knower of Brahman through his concentrated vision. Atman is perceived when the mind located in the space between the eyebrows, becomes free of all distractions and activities. In this state, the yogin becomes aware of self within, and in the sages, in siddhas and others. If dissolution of the mind in the space between the eye brows does not occur, the yogin should envision absolute bliss, alternatively the full moon inside the mouth. This helps the mind dissolve away distractions and activity, helping it reside in Vishnupada or the Akasha (sky), and brings the yogin closer to moksha or liberation. This is a stage where the feeling of liberation and bliss begins to emerge, the goal of the practice of yoga. Brahman is the origin of all, it is all that exists and all that into which it will dissolve back, and the Vedas teach that this Brahman resides in the heart of a person. It is, translates Bhattacharya, "subtler than the subtle, greater than the great" and is perceived with the cleansing of one's mind and intellect, one achievable with breathing exercises, sacred sound exercises and yoga. Epilogue Following the complete exposition of all the principles of yoga, Yagnavalkya leaves for a secluded place to continue his meditative contemplation, while Gargi forsakes her world, retires to a forest hermitage, and seeks refuge in the practice of yoga. Translations Two English translations of the complete text are known, one by Desikachar