As the physical body has a brain, spinal cord with nerve pairs forming plexuses at the cervical,
dorsal, lumber, sacral and coccygeal regions, so the astral body has an astral brain of a
thousand rays (petaled lotus), an astral spine with subtle centres of light and energy and an
astral nervous system whose myriad luminous channels are called nadis.
In the astral nervous system channels flow the life-force or Pranas in five differentiated for
...ms.
The main astral spine of light is the sushmana, which is the Axle of the universe in the human
body. It has within it two luminous spines (or astral nadis)- on left, ida; on right, pingla. These
two constitute astral sympathetic nervous system- which, in turn controls the corresponding
sympathetic nervous system of the gross body.
Read more