What does rachel tell heck about meeting someone? Its at the beginning of the movie

Rachel: "It's funny. I went around to say thanks for what she did at our wedding. 당신 know when you've just met someone but straightaway 당신 feel as if they're going to be your friend. Who knows why... Past life. Physiognomy. But for some reason 당신 just kind of click. I don't know what I'm saying. But do 당신 know what I mean?"