Lord Shiva was so infatuated by the appearance of lord Vishnu in his form of Mohini roopa that his semen was released on the ground. This semen was established by the Saptarishis in the womb of Anjani, with the permission of lord Shiva himself.
In this way was born the mighty Hanuman. Once, during his childhood Hanuman had swallowed the Sun, which he released only after the deities prayed to him. The sun accepted him as his disciple and made him proficient in all the learning’s. He started living with Sugriva as per the instructions of his teacher – the Sun.
During the time of Sri Rama’s exile, Sugriva developed friendship with him with the help of Hanuman. Hanuman helped Sri Rama in finding the whereabouts of Sita, who had been abducted by the demon king Ravana. He took a giant leap and jumped across the ocean. He went to Ashok-Vatika where Ravana had kept Sita. He gave Sri Rama’s ring to her and consoled her by saying that very soon Sri Rama was going to arrive and release her from Ravana’s captivity. He also burnt the whole Lanka by his burning tail and returned to Sri Rama to give him Sita’s news while the battle was fought between Sri Rama and Ravana Lakshmana got seriously injured and became unconscious. Hanuman saves his life by bringing the whole of mountain, upon which the herb Sanjivani grew.
Being present at the service of Sri Rama, Hanuman performed his duties marvelously. Worship of Hanuman helps a man to become free from all kinds of problems, diseases and hurdles etc.