She is one of the two consorts of Lord Ganesha. She is the personification of power. It is the power to act, power to acheive, power of religious motivation etc. It is believed that Ganesha, if worshipped with this Shakti of his, the devotee gets whatever he wishes from all the four Purusharthas - dharma(religion), artha(money), Kama(desire),moksha(salvation).