Maha Shivaratri is a Hindu festival celebrated annually in honor of Lord Shiva. 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 Phalgun) and before the arrival of Summer, marks Maha Shivaratri which means "the Great Night of Shiva".
It is a major festival in Nepal and India 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 self-restraint, honesty, non-injury to others, forgiveness, and the discovery of Shiva. The ardent devotees keep awake all night. Others visit one of the Shiva temples or go on pilgrimage to Jyotirlingams. This is an ancient Hindu festival whose origin date is unknown.
The celebration includes maintaining a "jaagaran", an all-night vigil and prayers, because of Shaiva Hindus mark this night as "overcoming darkness and ignorance" in one's life and the world through Shiva. Offerings of fruits, leaves, sweets, and milk to Shiva are made, some perform all-day fasting with Vedic or tantric worship of Shiva, and some perform meditative Yoga. In Shiva temples, "Om Namah Shivaya", the sacred mantra of Shiva, is chanted through the day.
Maha Shivaratri is celebrated over three or ten days based on the Hindu luni-solar calendar. Every lunar month, there is a Shivaratri (12 per year). The main festival is called Maha Shivaratri, or great Shivaratri, which is held on 13th night (waning moon) and 14th day of the month Phalguna. In the Gregorian calendar, the day falls in either February or March.
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