There are numerous myths regarding the origin of Shivaratri. Most of the stories of Shivratri can be traced to the Puranas. A few important legends are detailed below. It must be noted that almost all the myths happened during night and this is one of the reason for celebrating Shivaratri during night. Myth of Shivratri based on Vishnu and Brahma searching for the origin of Linga Lord Vishnu and Brahma wanted to know who was superior and this led to a fight. Lord Shiva intervened and said whoever can find out the origin or end of Shivling is superior. Lord Shiva appeared before them in the form of a huge pillar of fire. Lord Vishnu went down searching and Brahma went up searching. Both traveled and traveled but never met the beginning or end. After the futile search, Lord Vishnu and Brahma prayed to Shiva and appeared before them in the form of Jyotirlinga and this day of the appearance of Lord Shiva is celebrated as Shivratri. The Story of Shivaratri base