A proven technique for manifestation can be found in the ancient mechanism of the mantra: these can be spoken or mental repetitions of a phrase or word, in order to strenghten the manifestation process.
Of course this is a way of reinforcing your current thoughts about the reality you live in. And whether this is an absolute reality or an illusion is not really an issue. Even though current science puts us into an infinitessimal position in spacetime, you might find that in the end you will have to put yourself at the center of your universe in order to realize yourself fully. That does not mean being mean to others, or going for absolute service to self, but more like recognizing in which reality you wish to live, and work to make that happen. And when you do, you will find out there is a definite force out there working with you to manifest it!