The Adi Shakti Mantra tunes one into the frequency of the Divine Mother, and to the primal protective, generating energy. It is said that chanting it eliminates fears and fulfills desires.
Some quotes Yogi Bhajan gave on this mantra specifically for women:
"Merge in the Maha Shakti. This is enough to take away your misfortune. This will carve out of you a woman. Woman needs her own Shakti, not anybody else will do it. When a woman chants the Kundalini Bhakti mantra, God clears the way. This is not a religion, it is a reality. Woman is not born to suffer, and woman needs her own power."
"When India and Indian women knew this mantra, it dwelt in the land of milk and honey."
Yogi Bhajan taught that after conception, the soul enters into the womb of a mother on the 120th day. This is a day of celebration and when the soul/child is entering the womb this chant is traditional.