The third eye chakra and the crown chakra are opened by the correct body posture and the correct face expression.

So the third eye chakra and the crown chakra opening requires the correction of both - the body posture as well as the face expression.

The crown chakra, Sahasrara is said to be the chakra of consciousness, the master chakra that controls all the others. Its role would be very similar to that of the pituitary gland, which secretes hormones to control the rest of the endocrine system, and also connects to the central nervous system via the hypothalamus. The thalamus is thought to have a key role in the physical basis of consciousness.

The Ajna Chakra, or Third eye, is linked to the pineal gland. Ajna is the chakra of time and awareness and of light. The pineal gland is a light sensitive gland, that produces the hormone melatonin, which regulates the instincts of going to sleep and awakening. It has been conjectured that it also produces trace amounts of the psychedelic chemical dimethyltryptamine.

(Note: some argue that the pineal and pituitary glands should be exchanged in their relationship to the Crown and Brow chakras, based on the description in Arthur Avalon's book on kundalini called Serpent Power or empirical research.)

The idea of chakras as understood in Eastern philosophy does not exist in medical science. In Eastern thought, the chakras are thought to be levels of consciousness, and states of the soul, and 'proving' the existence of chakras is akin to 'proving' the existence of a soul. A mystic deals with these occult concepts on the occult plane, as a model for their own internal experience, and when talking about 'energy centres', they are generally talking about subtle, spiritual forces, which work on the psyche and spirit, not about physical, electrical, or magnetic fields.

The primary importance and level of existence of chakras is therefore posited to be in the psyche and in the spirit. However, there are those who believe that chakras have a physical manifestation as well. Although there is no evidence that Indian mystics made this association themselves, it is noted by many that there is a marked similarity between the positions and roles described for chakras, and the positions and roles of the glands in the endocrine system, and also by the positions of the nerve ganglia (also known as "plexuses") along the spinal column, opening the possibility that two vastly different systems of conceptualization have been brought to bear to systemize insights about the same phenomenon. By some, chakras are thought of as having their physical manifestation in the body as these glands, and their subjective manifestation as the associated psychological and spiritual experiences.

Indeed, the various hormones secreted by these glands do have a dramatic effect on human psychology, and an imbalance in one can cause a psychological or physical imbalance in a person. Whether these changes in body state have a bearing on spiritual matters is a subject of dissent even among the Indian theorists, and the different systems of conceptualization, Indian and Western, make only a partial convergence in this case.

Perhaps the most psychologically dramatic and potent secretion of these glands is the psychedelic drug DMT (which is synthesized by the pineal gland, corresponding to the brow chakra). At least in the West, some individuals have sought spiritual breakthroughs through the use of such chemical aids, occasionally referred to as entheogens in this context. (See for example: Aldous Huxley, The Doors of Perception, a classic of new-age spirituality.)

In my weekend training session for opening the third eye chakra and the crown chakra, I just correct your body posture and face expression; and the third eye chakra and the crown chakra start opening instantly.

You discover the real physical nature of your body that makes you feel enlivened instantly as a result of undergoing the third eye chakra and the crown chakra opening program.

The only thing left, then, is to turn this personal discovery into your spontaneity - of body and mind; and the instant opening of the third eye chakra and the crown chakra turns into the lasting opening of the third eye chakra and the crown chakra for life!