The inspiration originated from undying spirit of a soldier and his rooted belief in the quotes from “Gītā” Summarized from TEXT 23 :
nainam chindanti sastrani, nainam dahati pavakah
na cainam kledayanty apo, na sosayati marutah
The soul can never be cut into pieces by any weapon, nor can he be burned by fire, nor moistened by water, nor withered by the wind.