The Mahashivratri sadhana is a preparation for Mahashivratri – a night of tremendous possibilities. Anyone over the age of eight can participate in the sadhana, which can be done for a duration of either 40, 21, 14, 7 or 3 consecutive days leading up to Mahashivratri on February 24, 2017. The 40-day sadhana starts from Jan 16, 21-day from Feb 4, 14-day from Feb 11, 7-day from Feb 18, and 3-day from Feb 21.