Definition of Chakra
The word chakra literally means 'wheel' or 'circle', but in the yogic context it is 'vortex' or 'whirlpool'. The chakras are vortices of pranic energy at specific areas in the body which control the circulation of prana permeating the entire human structure. Each chakra relate to specific areas of the brain, and in most people these psychic centres are inactive. Concentration on the chakras while performing yogic practices stimulates the flow of energy through the chakras and helps to Activate them. This in turn awakens the inactive areas in the brain and the corresponding faculties in the psychic and mental hoodies, allowing one to experience planes of consciousness which are normally inaccessible. The petals of the lotus, inscribed with the bija mantras or seed sounds of the Sanskrit alphabet, represents the different manifestations of psychic energy connected with the Chakras
About Sahasrara Chakra
Situated at the crown of the head. It is the residence of highest consciousness. The word sahasrara means 'one thousand'. Sahasrara is visualized as a shining locus of a thousand petals, containing the fifty letters of the Sanskrit alphabet twenty times over. In the centre of the lotus is a shining jyotirlinga, lingam of light, symbol of pure conscious ness. When kundalini awakens, it ascends through the chakras to sahasrara and merges into the source from whence it originated. Matter and energy merge into pure consciousness in a state of intoxicating bliss. Having attained this, the yogi gains supreme knowledge and passes beyond birth and death.