Arudra Darshan is an auspicious day to commemorate the cosmic ecstatic dance of Bhagawan Shiva, a symbolic representation of Pancha Krityas or five duties which are Srishti (Creation), Sthithi, (Preservation), Laya (Destruction), Tirobhav (Concealment and Revival) and Anugraha (Salvation).
Arudra Darisanam is celebrated on Purnima or on a full moon night accompanied by Arudra birth star in Margazhi which is considered as the longest night of the year.