Interesting you've asked that, Red Violet 3, cause I've heard someone saying: you can't manifest what's not there. If He/She is there in this realm in physical form, you'll meet them even if it means only saying 'Hi' and nothing else.
There was SeekerTim with his experience, he met that someone, but their paths just passed each other by.
It depends on lots of factors.
If we talk only about reflections, well, there are different parts of us that can get reflected through/in someone and therefore we can meet/attract more people that way. But a soul match (romantic soulmate, twin soul, whatever) is something else if there's only One.
I can imagine reading this by someone who doesn't believe that stuff thinking "hard-core sci-fi"
Even I don't know where's it coming from, haha
I agree with what Shaj said, btw.