Soulmate,

I believe they're exist.

Just not always romantically.

I think there are certain people you will meet in your life who you just connect with more than anyone else.  How you want to know?  You just know it, you will know that feeling when you meet your soulmate.  You just know it isn't a typical thing and you understand each other perfectly.  And this person won't always be your significant other.  I mean it could be your friend or your sibling or parent or your lecturer or the person you're dating or whoever.  It could be just about anyone you've ever interacted with.