For those who observe the fast religiously and regularly
Rudra is the name of Lord Shiva. He is the supreme power and the destroyer of evil. The many names of Shiva describe His physical aspects and His powers. Thus 'Tri Netra' (three eyed), Neela kantha' (blue necked), Nataraja, Ardhanareeswara(both man and woman), etc.are the descriptions of Lord Shiva He is gentle as well as fierce, the greatest of renouncers as well as the ideal lover. He always protects his devotees from mishaps. He is simple, merciful and compassionate.