You could wish upon a star, make a request to the universe, or even pray to the deity you serve. But none of it will make a difference, unless you put some energy into the thing you desire.
A wish is a desire without energy. –Paramanhansa Yogananda
What is energy? It is action.
And what does acting on a desire look like? You have to make a plan on how to bring that desire born of the imagination into reality. And then once you have that plan, you have to breathe life into it by executing the plan.
Action. It is the key every time. But like everything else in life, you have to make the choice to act. Will that wish be a forgotten remnant of a memory or will you touch a spark to your desire and manifest a new reality?