Lord Hanuman, who is the symbol of strength, energy, and victory appears in Mahabharata epic twice. The symbol of Hanuman on Arjuna’s flag is another sign of victory. It’s the second example as first he cooperated with Lord Rama(Shri Ram) in the battle between Rama and Ravana. As a result of his continuous support and dedication towards him, Lord Rama came up victorious. Lord Krishna is Lord Rama himself and wherever Lord Rama is, his all-time devotee Lord Hanuman is present. Along with Rama, his wife Sita, the goddess of fortune, is always there.
Hanuman’s role in the battle of Mahabharata:
Therefore when Hanuman joins Arjuna during Mahabharata, he had no reason to fear any kind of enemies. And especially, the Lord of the senses, Lord Krishna, was himself present to direct him during the war. Thus, all good luck and guidance were with Arjuna at the time of performing the battle. In such fortunate and lucky Kismat conditions, arranged by a Lord, for his believer, the signs of victory flowed in the air. Hanuman decorated the flag of Nandighosh(Arjuna’s carriage). He was ready to shout the battle cry in order to help Bhima to make his enemies fear.
Hanuman and Bhima met:
According to Mahabharata Bhima and Hanuman first met when the Pandavas were in exile. Once, while Arjuna was given the holy weapons, the remaining Pandavas wandered to Badarikashrama, high up in the Himalayas. To their surprise, the Alakananda River through its waves carried a beautiful and scented thousand-petaled lotus flower to Draupadi. Draupadi was impressed by its beauty and scent. “Bhima, see this beautiful lotus flower. I should offer it to Yudhishthira Maharaja. Could you get me a few more of these?. We could even take some of them back to our shelter in Kamyaka.”
Bhima took his club and set his journey high up towards the hill where no mortal beings were permitted. As he ran, he made loud noises and frightened the elephants and lions. He uprooted trees which came in his way and pushed all of them aside. Without caring for the deadly animals of the jungle, he climbed a steep mountain until he came across a huge monkey. Blocking his way and taking rest. “Why are you making so much noise in the jungle and scaring all the animals?” the monkey said. “Sit down and eat some sweet fruits”. “Clear the path,” ordered Bhima, as his manners stopped him from stepping over the monkey and going ahead.
The monkey replied, “I am too old to move on my own, Jump over me to cross.” Again showing the weakness of his old age he asked to push the tail aside and move ahead. Bhima was irritated at this, but proud of his strength he tried to pull the tail with his full-strength. But the tail did not even move an inch. After trying hard for long, He realized this was no ordinary monkey he gave up and asked for pardon. He then bowed and respectfully asked the monkey who he was.
The monkey opened up his identity as Hanuman, son of Vayu, his brother. Later he told him by doing this he saved him from the dangers and devils(rakshasas) in the forest. Thus, Lord Hanuman came in his original form and blessed Bhima.
Hanuman’s blessings and support to the Pandavas:
Filled with happiness, he asked Hanuman to show him the form in which he had crossed the ocean. Hanuman smiled and started to increase in his size. As Bhima noticed he was amazed seeing that he had grown beyond the size of the mountain. Bhima bent his head down before him and told that seeing his great strength he was surprised, and now was sure to defeat his enemies.
At last, Hanuman gave final blessing to his brother saying “When you will roar like a lion during the war, my voice shall be linked yours and attack your enemies heart with terror. I shall remain on the flag of your brother Arjuna’s, huge carriage. You will be successful and get your kingdom back.”