The Most Venerated Supreme Soul Shiva does not take birth as other beings do from the wombs of their respective mothers, because He is Himself the Supra-Cosmic, Father-Mother of all mankind and, being above Karma and the bondage caused by it, He is also free from the kind of birth the human beings are subject to. Unlike other souls, He does not take a body that be ‘His own’, because one’s ‘own body’ is had on the basis of one’s past actions and resolves (Samskaras). God Shiva does not perform any such actions and has no such bondages and resolves as other beings have.
What He does is that He descends from the Supreme Abode and uses the medium of a mediocre man, who has an aged body of ‘his own’, which he has acquired as a result of his past actions and resolves. God Shiva takes the body of that man ‘on loan’ so to say, because He requires a mouth-organ for unfolding the knowledge and spiritual yoga unto mankind.
This body serves as the corporeal medium or a vehicle for Shiva, the Supreme Soul. God Father Shiva only speaks through the oral organ of this man to divulge the truth and to enlighten the path of mankind. For this purpose, He descends from His Supreme Abode for short periods, as and when He so wills and then, having given the teachings, returns to His Abode.
This extraordinary way of embodying Himself into a man’s aged body or this entry into another’s body, is called the Divine Birth or Supernatural Incarnation of God Shiva and is peculiar to Him only. When the Knowledgeful God Shiva reveals the Knowledge, which had hitherto gone into oblivion, through the mouth of this man, he (the latter) also listens to it and assimilates it, even as many others do, and in this way, the souls transform themselves into righteous and pious ones. The Most Exalted God Father Shiva gives this man a new name because having renounced his previous ways, this man is now changed and, as we say, is a ‘possessed man’.
This man is now given the name ‘Prajapita Brahma’ by God Shiva. In other religions, he comes to be known as Adam or Adhem, the progenitor of holy mankind. Those who listen to the sermons of God, the Supreme Father, as uttered through the mouth of Prajapita Brahma, are known as Brahmins or the ‘oral progeny of Brahma’ or the ‘mouth-children of Adam’ or ‘Brahma Kumaris and Brahma Kumars’ and this knowledge, which God gives, is known as the ‘original Gita-Gyan’.