If a question recurs, it may be time to dig deeper, by sharing appropriate books or helping your child get involved in a related activity. Children work on their problem-solving skills in many areas of life. Even minor exchanges teach her something about how much you respect her learning process. By encouraging your child to think things through and make decisions for herself when possible, and being available as a resource and support when she needs it, you affirm her way of looking at things. You teach her to learn from her mistakes.
Children learn about the big questions of life through the details they struggle with.
If we offer generalizations or noble sentiments, we fail utterly to connect wit the mundane truths they encounter on the playground, in the classroom, and at home. Answers cannot be handed down as aphorisms. Happily, your child has the tools and talents to learn to respond to her own questions with your help. She makes startling connections between the story she heard at the library last week and the goslings in the park this morning. If she is not satisfied with your answer, you are likely to overhear her demanding a better one from her big brother or the babysitter.