Illumined and inspired by the divine qualities of the indwelling supreme Self, the enlightened self becomes firmly established at Ajna, the spiritual eye, and witnesses a white star within a dark blue center surrounded by a brilliant but soothing effulgence. While at this state there is awakened a cosmic vibration of all-engulfing immensity wherein the self is merged in blissful self-consciousness. The illuminating, joyous vibration of the ascending current of Pranic force resembles the tone quality of the hum of the bumblebee at Muladhar, coccygeal; that of the melodious note from a violin at Sadhisthan, sacral; that of the sweet call of a flute at Manipur, lumbar; that of the deep and vibrant roar of a conch at Anahata, dorsal; that of the reverberation of rolling thunder at Visuddha, cervical; and that of an universal symphony of exalting blissfulness at Ajna, the spiritual eye. Besides these there are also felt in this body temple the power of calmness of mind and poise of the senses, clear conscience and love of truth, intuition and enlightened perception, as well as the power of purified consciousness and self-realization. The illuminating power and joyousness of these vibrations are beyond the conception of mind. This cosmic vibration, resounding throughout the entire being and consciousness, spiritualizes the faculties of the senses, transforms the will of the sense-attached mind, and liberates the self from sense-identification.
Srimad-Bhagavad-Gita: The Revelation of the Supreme Self
Swami Premananda