Lord Shiva is considered to be the ‘Adi-Dev' Which means the oldest god of Hindu mythology. The Puranas say that he's not born from any human human body. He is simply developed automatically. He is there when there was nothing and he will continue being after the destruction.
Someday Lord Brahma and Lord Vishnu were arguing about which ones is a lot more potent than the opposite. Instantly, there appeared a blazing pillar. The root and the highest were being unseen and an oracle was heard with the both of those gods.
He is the start; He's the end. He is the last word. So, right before celebrating Shivratri this yr, know the start top secret of Lord Shiva and his other stories.