There are lots and lots of books out about intention, the importance of intention in accomplishing anything. And from what I have seen in psychic reading sessions with clients, in seeing how energy works in the human energy field, I would say there is no doubt intention has everything to do with how you experience reality, what you can create.
I see thoughts as energy, feelings and emotions as energy. They are released from the person and spread in the aura creating a field, a vibration. That vibration is a filter through which the person experiences the world. It's also information for others. What's in that field is what others will respond to.
If you want something, if your thoughts about it are clear, if there is no doubt, then your filter becomes one where you will see opportunities. People will respond to you with information and suggestions.
If there is doubt, uncertainty, the aura is clogged up with conflicting energies creating confusion. This becomes the filter then. And it becomes very hard to create from confusion, uncertainty and doubt. There is no focus.
The easiest way to discover your intention is not by asking "What is my intention about this?" but by seeking any hesitation, fear, doubt. Once you've identified it, you can do something about it, either realize it as just a fear you can let go, or work through the issue if there is something deeper, until you come to clarity.
It's easy to name what we want, or what we intend, but that can be wishful thinking. It does not include what's in the way, our fears and doubts. But once you've identified those, you've cleared the path. Your intention has a focus and the probability of manifestation is increased.
So when you're wanting to create something, explore your intentions, fears and hesitations and clear the path for optimum creation.