An interview session, you might come up with this kind of questions. They usually check out of your job what kinds of stuff you do to improve yourself. Many companies feel culture fit is extremely important and they use outside interests as a way to determine how you will fit into a team.
You should reply in such a manner where it should indicate some sort of growth: skills you are trying to learn, the goals you are trying to achieve. For example, I am working with an NGO, where I teach them how to grow in life. What path and ideology, one should follow to become successful in life.