If each star was a world, how many stars would I have to sort through to find the centre of my world?

Sora had been staring at the sky all night, tracking the stars. Billions of hearts igniting each little world; he liked the idea of it. He always had.
But, it had never crossed his mind which star lit his little island. What star… could possibly be bright enough to light his entire world? He didn't really think about it, well, he hadn't until recently. Then, in the vague and shadowed distance, he saw a spark.

"I will… follow her… into the dark." He stepped forward and extended a hand out to the sky.