SO HUM

 Bodhyana suthra  Mahanyasa , section: Shiva archna (shiva worship)

 The shloka states

“Deho devalaya Prokthaha 
Jeeva Shiva Sanathanaha
Thejathe Agjana nirmalyam
“SO HUM” Bhavena Poojayee” 

The body is the Temple, The life within is the SHIVA
Removing your ignorance and coming to an understanding, that, I AM THAT, should be ones WORSHIP.

Thus the HUMAN BODY forms the Architectural base of a Hindu temple.

Below is a clear cut explanation of a TEMPLE in the (HINDU) temple architecture.     

THE SEX ORGAN in the temple architecture is represented by the "Dwaja stamba"as Male, altar of ego and " bali peeta" as female. 
 ( see the placements in picture above ) also notice the  placement of Ajna chakra on top of the forehead )

(here i am explaining just the SHIV-LING part) 

 The Shivling is placed in the “Garba gudi” sanctum of the temple which signifies the head .…the gopuram  on the garba gudi (sanctum) is made of a thousand layers , signifying the skull layering (sahasra, thousand lotus petals )…

Human Pineal Gland

The Pineal Gland (in the MIDBRAIN ) known as the master gland, is responsible for all the chemical producing glands in the body  ( Like Shiva runs the whole Bramhanda ).Pineal gland runs the whole body called "Pindanda"
  This Pineal Gland is what we see in the form of a SHIVLING.
At the physical level it works as Master gland responsible for the production of Amruth , Somras  (serotonin, pinoline  melatonin, and DMT5).

One finds the Shiv-ling  placed in the DARK sanctum of the temple. 

Medical science says, Pineal gland is productive, only in total darkness.
(That is the reason Rishies  did thapas in caves)

       ( Ajna Chakra third EYE)
          ( see the Lingam ,in the center of the picture). 

The pictorial thapo bangi of Shiva is an indicator, that when one meditates,(THAPAS) it enhances the production of these chemicals, which ultimately opens the Gyana Chakshu  (THIRD EYE) meaning, one accesses the KNOW 
ALL dimension ... SO HUM