(Sanskrit: आज्ञा) The sixth primary chakra that is connected to the pituitary gland of the physical body. It is recognized in the astral body as a lotus with two petals. A developed Ajna Chakra enables clairvoyance. Also called the agni or agniya (fiery) chakra.
This chakra is found connected to its marvelous center located between the eyebrows. The Master who directs this center is Paramashiva. The mantra that makes this chakra vibrate is Om: Oooooooommmmmmmmm. This chakra has two petals. This marvelous chakra has a very pure white color. The cavernous plexus is the one that corresponds to this chakra. - Samael Aun Weor, Kundalini Yoga, The Mysteries of the Fire