Why should you stay awake all night this Feb 13th ?

Why should you stay awake all night this Feb 13th ?

Mahashivratri Sadhana – Tools for Transformation 2018

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 Feb 13, 2018. The 40-day sadhana starts from Jan 05, 21-day from Jan 24, 14-day from Jan 31, 7-day from Feb 07, and 3-day from Feb 11

Courtesy : ISHA Foundation