Durga Yantra Wealth and Prosperity. Wearing this yantra provides protection to man from all kinds of dangers. Along with this, it also provides longevity and happiness of having a child to an infertile woman. And it is also beneficial for pregnant women. If a woman is having repeated miscarriages, then this device proves to be very effective in preventing such incidents. If this Yantra is consecrated then the devotee can use it for up to six religious rituals.