Your Aunt's numerology power number is the number 9.

The number 9 represents energies that, among other things, resonate with the ideas of humanitarianism, compassion, philanthropy, idealism, and tolerance. It's a broad-minded number, able to see things from an inclusive perspective rather than only from a narrow focus.

The energies the power number represents come into force around middle age. Not suddenly, but gradually over several years. It stays with the person for the rest of their life.

It's a powerful number because it can affect the person's outlook on life.

If the power number matches one of the three major name numbers or the life path number, the change may not be noticed much other than for an enhanced passion or focus on the aspects of the energies represented by the matching number. However, if the power number is different than any of the major name or life path numbers, as in your Aunt's case, the number can cause a shift in life perspective and importances.

Read more about what power numbers signify, along with other information about that chart position, in the Numerology Power Numbers article.