Sometimes you get there by thinking. More often, you get there by asking some questions of your own. A conversation ensues. An answer emerges. This is, in fact, the origin of philosophy and of dialogue itself.
Questions are a deep structure in our thought and language and social nature.
When we ask a question, we not only express an interest, thus exposing our own passionate natures, but we also have some sense of the type of answer we're going to receive. For example, when Aristotle asked why a plant grows, he looked for an answer that had to do with intentions and values. Darwin asked the same question differently. Questions are also primarily social. We may ask ourselves a question the way we may sing in the shower, but first and foremost, a question is something we ask someone else.