Pradosham literally means “Removal of Sins”. When Pradosham falls on a Thursday, it is known as Guru Vara Pradosha. On this day Divine blessings are received from the Guru and also from ancestors. It is believed that possible dangers are eliminated by observing a fast during the time of Guru Vara Pradosha.
Pradosham are windows of opportunity to remove karma or karmic energies that limit our potential in this current life. It is the time that Shiva absorbs our karma. Twilight Pradosham, marks the end of the day light and beginning of night. Day is ruled by Gods, angels and saints while night is ruled by evil spirits.
Twilight is the time of Shiva when he absorbs the day and night, good and evil and all opposites into oneness. This time of transition is also one of transcendence. The twilight time is also called End Time when Earth ends.
From East to West the five Temple Nandis are:
Periya Nandi in front of Vallala Gopuram, Fifth Prakaram
Chinna Nandi, Fourth Prakaram
Kodi Kampathu Nandi,Third Prakaram
Ratha Vilaku Nandi, Second Prakaram
Pradosha Nandi, Moolastanam
All of these five Temple Nandis receive abhishekam and aarti at Pradosham.
Next Pradosham to be observed at Arunachaleswarar Temple will occur on Thursday, June 2, 2016