Lord Hanuman is known for his devotion to Lord Rama. He is the son of Anjana and Kesari and blessed by the God of wind, Vayu. Hanuman is celebrated for his devotion to Lord Rama. It is believed that Hanuman is an avatar of Lord Shiva or Rudra Avatar. Several texts present him as an incarnation of Lord Shiva.
Lord Hanuman is known as an incarnation of Lord Shiva OR Rudra Avatar
After Vishnu agreed to be born as a man to defeat Ravana, Brahma felt that he would need help, so he asked Shiva to take on an avatar as well. Shiva decided to be born as Hanuman, the son of Vayu the wind god, and the Apsara Anjana, who was born on earth as a Vanara princess due to a curse from Durvasa Rishi.
As a child, Hanuman was very mischievous. One time, soon after he was born, Hanuman attacked the sun thinking it was a piece of fruit, and when the sun ran away, he kept on chasing it! Despite being naughty as a young monkey, Hanuman was extremely loyal and courageous.
Hanuman’s best friend Sugriva was the brother of Vali, the king of Kishkindha, the land of the monkeys. Through a misunderstanding, Vali chased Sugriva out of Kishkindha and exiled him. Hanuman was the only one to accompany Sugriva in his exile. Hanuman showed just as much loyalty, if not more, to Rama as he did to Sugriva.
When Rama met Hanuman during his search for Sita, the two became instant friends. They were supposed to become instant friends as the event was pre-planned by supreme gods. Hanuman was the one responsible for locating Sita and telling her not to lose hope, that Rama was coming for her.
During the battle between Rama and Ravana, Rama’s army was badly injured and many were killed. Upon seeing the devastation, Hanuman left to find a life-restoring herb called “Sanjeevani Booti” located on a far-off mountain, Dronagiri range of the Himalayas in Uttarakhand.
When he reached the herbs, he realized that there was no time to pick them, and in his devotion and loyalty, he lifted the entire mountain and carried it back to Rama and his men. Without Shiva as Hanuman, I doubt that Rama would have been able to save Sita in time. I still believe that Rama would have defeated Ravana, but without Hanuman by his side, the battle would have been much more difficult.
Hanuman as an avatar of Shiva is not accepted by everyone, but there are many learned people who believe it and It is also mentioned in Satarudriya Samhita of Shiva Purana. It makes sense to me that Brahma would want another one of the gods to assist Vishnu on his quest. As Ravana was a great devotee of Lord Shiva, it was nearly impossible to defeat him.
As we look into the story of Ramayana, if Hanuman had not been there, then Rama would have taken too long to find Sita and not made it back in time to keep Bharata from killing himself, and the whole story would have been different.
Lord Hanuman was born on the full moon day (Purnima) of the month of Chaitra on Tuesday. Tuesday is considered a very auspicious day to worship Lord Hanuman.
Mentions of Hanuman as Shiva Avatar
Shiva Purana – Avatar of Lord Shiva
Agastya Samhita – Lord Shiva placed him in the womb of Anjana (mother of Hanuman)
Shri Vaishnav Matbaja Bhaskara – Lord Shiva chose to be a child of Anjana
Dohwali of Tulsidas – After Shiva left Rudra form, he incarnated as Lord Hanuman
Vadwalan Strota – Vibhishana called Lord Hanuman ‘Rudraavatar’
South Indian beliefs – Avatar as the union of Vishnu and Shiva
Rasavinoda by Dinakrishnadasa – A combined incarnation of Brahma, Vishnu, and Shiva
Hanumat Charita – Son of Shiv Shakti
Anushasana Parva, Mahabharata – Incarnation of Lord Shiva
Tara Sara Upanisad – Lord Shiva as Lord Hanuman
Shabar Mantras – Adress Hanuman as Rudraroop and Rudramurti
Hanuman Chalisa – Shankar Suvan (incarnation of Lord Shiva)
Tantric cults – Maharudra
Narada Purana – Hanuman roop of Lord Shiva
Skanda Purana – Indirect incarnation of Lord Shiva