The fifth of the seven chakras, placed by some commentators in the region of the throat (in baseline hu physiology).
In traditional Tantrika iconography the Ajna or Brow chakra has sixteen petals, is associated with the tattwa (element) of Akasha or Space, which in pre-scientific Hindu cosmology is considered the most subtle of the five material elements, infinite and all pervading. It is also the medium for transmission of mantra. Subsequent esoteric schools modified this greatly, and akasha is now traditionally and generally considered a subtle dimension behind beyond obvious matter and energy even the most subtle elements (although still part of embodied existence). The Vishudda Chakra is traditionally smoky in color.