Maybe there's something you're afraid to say, or someone you're afraid to love, or somewhere you're afraid to go. It's gonna hurt. It's gonna hurt because it matters.

This quote is talking about facing your fears. It suggests that sometimes, we are afraid to do certain things like tell someone how we feel or go somewhere new. Though it may be frightening, it is important to do these things even if it causes us discomfort or pain because it means that it matters and is worth doing.