As per Hindu conviction, the acts of Generation (UTTPATI), Operation (PALAN) and Destruction (SANHAR) are performed by the Supreme Power, which entitle him to be called "GOD". These acts are not possible without "SHAKTI" - The Power.

The goddess of the power is DURGA and KARNIMATA is incarnation of the Durga - the goddess of Power.

If this shakti is the driving force behind God's acts you can imagine the effect it will bring about in human being who worship KARNIMATA THE INCARNATION OF SHAKTI HINGLAZ (Baluchistan, now in Pakistan this is one of the shaktipith out of 64 shaktipith of Devi Durga.). The devotees get this divine power at the time of worship and feels through out of the day.

In 5th century Shree Karni Mata was the one who forced the King to stop the "NAVROJA" (The exploitation of women by the Mughal Emperors)

In Hindu mythology the rat is considered the vehicle of Lord Ganesh, son of Durga. Since here rats live in thousand numbers it's obvious that Ganesh (Son) should live be living there. Once the son resides at the place, naturally the mother "Durga - the goddess of Power" will also accompany her son (Ganesh). Devotees can obtain the same power from mother by worshipping at this temple.

The power of the Karni Mata can't be described by anyone in the whole universe, it can be experienced only by one oneself.