What is the Ajna Chakra (Third Eye Chakra) in Hindu yoga philosophy?

The Ajna Chakra (आज्ञा चक्र), also called the Third Eye Chakra, is the sixth of the seven primary energy centres in the human subtle body, located between the eyebrows. “Ajna” in Sanskrit means “command” or “perception” — it is the command centre of intuitive wisdom and inner vision. According to the Yoga Sutras of Patanjali, the Shiva Samhita, and the Ghantakarni Tantra, the Ajna Chakra is associated with: intuition, psychic perception, clarity of thought, spiritual insight, the union of opposites (represented by the two petals of the chakra), and the awakening of higher consciousness. Lord Shiva is the presiding deity, and Hakini Devi is the goddess associated with this centre. When fully active, the Ajna Chakra grants direct perception of truth beyond the physical senses.