Vertebrae:
The vertebral bones are piled one upon the other thus forming a pillar for the support of the cranium and trunk. They are connected together by spinous, transverse and articular processes and by pads of fibro-cartilage between the bones.
The arches of the vertebrae form a hollow cylinder or a bony covering or a passage for the spinal cord. The size of the vertebrae differs from each other. For example, the size of the vertebrae in cervical region is smaller than in dorsal but the arches are bigger.
The body of the lumbar vertebrae is the largest and biggest. The whole spine is not like a stiff rod, but has curvatures that give a spring action. All the other bones of the body are connected with this spine.
Between each pair of vertebrae there are apertures through which the spinal nerves pass from the spinal cord to the different portions and organs of the body. The five regions of the spine correspond with the regions of the five Chakras: Muladhara, Svadhishthana, Manipura, Anahata and Vishuddha. Sushumna Nadi passes through the hollow cylindrical cavity of the vertebral column and Ida is on the left side and Pingala on the right side of the spine.
Sukshma Sarira:
The physical body is shaped in accordance with the nature of the astral body. The physical body is something like water, Sthula form. When water is heated, the steam or vapour corresponds to the astral body. In the same way the astral or Sukshma body is within the gross or physical body. The gross body cannot do anything without the astral body.
