Mahashivratri vrat or Shivratri fasting is one of the most important fasts of Hinduism. The Mahashivratri vrat has a huge spiritual significance. The one who observes this fast is blessed with the divine grace of Lord Shiva. Apart from that, observing this fast helps the person to control the two important natural forces that affects the humans.
These two forces are known as the ‘Rajas’ and the ‘Tamas’ guna. The ‘Rajas’ guna literally means the quality of passionate activity. Evils like lust, anger and jealousy are born out of the ‘Rajas’ guna. The ‘Tamas’ guna is the quality of inertia or indifference and resistance to action.