Intuition and rational thinking are most powerful when you get them to agree. If I reason my way to a conclusion that doesn't feel right, that's a good indication that I missed something or discounted some aspect that I shouldn't have. And if I have a gut feeling, I won't act on it until I can rationalize it.*
* Of course, rationalizing a gut feeling is far from objective. But at least it makes you think things through.
The only thing is that, for me, rationalizing the intuition before I act on it can waste time and the opportunity, and kill inspiration. So I think it's important to act first sometimes (then go back and understand rationally later, as one other poster mentioned).
* Of course, rationalizing a gut feeling is far from objective. But at least it makes you think things through.