Manifestation can occur, yes.
But, more prominently, when you manifest a desire, it is because you are aligned with your higher self, your future self, which already knows what is coming; so by being aligned with your self you are able to intuit the coming creation. This gives the impression that you “created” it with your desire…. not usually how it works. How it works, is that outcomes are already chosen. Your decisions and choices shape the quality of the process of those outcomes. But when it comes to “manifestation” those synchronicities are not symbols of supernatural power but rather are sign posts that you are aligned with your highest self and are intuiting the future that has already been chosen for you.