Sati Devi in her physical form had no knowledge of the fact that she was Uma Devi in her original form, an inseparable part of Lord Siva. Sati since childhood was always lost in the thought of Shiva. Her whole life revolved around thinking, adoring and worshiping Siva.
Narada and Lord Brahma came to meet Daksha with a wish to see the extraordinary girl. Lord Brahma said to her, "One in whose heart there is place for you only and whom you want to become your husband, should be worshipped by you," and saying this Narada and Lord Brahma returned to their abode.
Having reached the age of adolescence, goddess Sati took permission from her mother, Veerini, and began living an austere life in meditation of Siva, in order to get Maheshwara, Lord Shiva, as her husband.
Lord Vishnu along with the other gods approached Lord Shiva on Kailasa mountain and said, "Maheshwara! Sati has been leading a tough life of austerity, accompanied by all the pains a physical form suffers, in order to gain you as her husband. We pray to you to be kind enough to accept her as your wife."