Hanuman was an incarnation of Shiva and considered to be an
exemplification of strength, devotion, and perseverance.
Anjana, a beautiful Apsara in celestial palace court of Lord Brahma
was cursed by a sage that, the moment she fell in love her face would
transform to that of a monkey. Lord Brahma thought of helping her and
she took birth on Earth. Later, Anjana fell in love with Kesari, the
monkey king and they both married each other. Being an ardent devotee
of Lord Shiva, she continued with her tapasya to please the God.
Shiva was impressed and she wished him to be her son so that she would
be freed from the curse of the sage.
Few days later, King Dasrath was performing a yagna after which the
sage gave him kheer to feed all his wives. A portion of Kaushlya, his
eldest wife, was snatched by a kite who flew all the way where Anjana
was meditating. Lord Vayu (aka Pawan – Wind) on the signal of Lord
Shiva kept the kheer in Anjana’s hand. Thinking it as Lord Shiva’s
prasad Anjana ate it and thus gave birth to his incarnation – Pawan
Putra Hanuman, the son of the Lord of the Winds.