An important festival connected with Arunachala occurs during the time of Pongal and is known as the Thiruvoodal Festival. This Festival is celebrated on January 16th and is ennacted inside the compound of Arunachaleswarar Temple, on the streets delineating the perimeter of the Temple, and on the girivalam pathway itself, by iconic representations of Shiva/Parvati in order to convey moral and social truths to their devotees.
The word 'Voodal,' means 'petty quarrel' or 'tiff' and emissaries are employed by both of the Divine Couple to convey messages between the deities and participate in ‘brokering a deal’ between them.
To find out more about this Festival and the legends associated with it check out this earlier link here