Dhwaj-Lightening arrestor

hi friends..,
               Pillars play an important role in both Hinduism and our ancient history. Kirti Stambhas were erected by Kings to commemorate their famous victories. Dhwaja Stambha, which is a very common feature in most of the Indian temples. It is a tall post-like structure, which is referred to as the flag-mast of the deity of the temple.Also, it is made of metal or has a metal covering rather than the former, which is made predominantly of stone.

During festivities, the Dhwaja Stambha is decorated with different types of flags to commemorate and celebrate that particular event. The Dhvaja Stambha is present in a straight line from the deity, just before the Vahana of the deity, which is also in the same axial line.

It is referred to as being a medium for the Heavens to be connected to the earth, which would refer to it being a spiritual connector between us earthlings and the supreme being, God, above.

                  

  But can this explanation have a deeper significance? Now what could be the reason behind constructing a metal pillar in the precincts of the temple? I believe that the Dhavaja Stambha is basically an ancient lightning arrestor. 

             

It's really wonderful how our ancient Indian Hindus have incorporated this principle in order to safeguard the most important place of their social setting, the temples.