Maha Shivaratri is a Hindu festival celebrated annually in honour of the god Shiva. The name also refers to the night when Shiva performs the heavenly dance.There is a Shivaratri in every luni-solar month of the Hindu calendar, on the month’s 13th night/14th day, but once a year in late winter (February/March, or Phalguna) and before the arrival of Summer, marks Maha Shivaratri which means “the Great Night of Shiva”.
It is a major festival in Hinduism, and this festival is solemn and marks a remembrance of “overcoming darkness and ignorance” in life and the world. It is observed by remembering Shiva and chanting prayers, fasting, and meditating on ethics and virtues such as honesty, non-injury to others, charity, forgiveness, and the discovery of Shiva.
The Maha Shivaratri is mentioned in several Puranas, particularly the Skanda Purana, Linga Purana and Padma Purana. These medieval era Shaiva texts present different versions associated with this festival, & mention fasting, reverence for icons of Shiva such as the Lingam.
Performing Rudrabhishekam on Maha shivratri are considered very auspicious.