One of the the most profound findings in the research I've done for my book is the understanding of how we create our world. Thoughts+Emotions = Creation. It is that simple.
In the book I go into much more detail, but suffice to say, the physics behind this seemingly simple explanation is not so simple, but that does not change the fact. When we engage our heart, through emotion, our thoughts begin to organize and create. That is why it is so important to learn to control your thinking. Especially the thoughts that bring forth emotion. As Seth says - whatever you concentrate on will be what you manifest. (Some day I need to get back to the Seth book and postings.)
For now, go here for a great post on synchronicity and the creative process.