"No one can tell you where you alone must go."
- If No One Will Listen (song) by Kelly Clarkson
My explanation: Essentially, what this is saying is that you can have people supporting you all the way - your friends, your family, the people that love you - but sometimes, you have to go places where they can't follow you. Sometimes you have to journey - either a metaphorical journey within yourself, or an actual, physical journey as well - to find answers to questions that only you have the ability to answer. Here is the song that this quote came from: