The seven main chakras are described as forming a column of light (silver column) running from the base of the spine to the base of the head. Each chakra is associated with a certain color, a duo of deities, a classical element, sounds, an organ of action, a sensory organ, functions of consciousness, etc. The opening of the sahasrāra-cakra , meaning thousand-petaled chakra ", corresponding to the culmination of the deployment of the kuṇḍalinī , is equivalent to spiritual awakening. "