We sometimes overly associate the power of the priesthood with men in the Church. The priesthood is the power and authority of God given for the salvation and blessing of all—men, women, and children.
A man may open the drapes so the warm sunlight comes into the room, but the man does not own the sun or the light or the warmth it brings. The blessings of the priesthood are infinitely greater than the one who is asked to administer the gift.
To receive the blessings, power, and promises of the priesthood in this life and the next is one of the great opportunities and responsibilities of mortality.