There will be a feeling between you of acceptance and understanding, as if you're able to really understand your friend and where they're going in life. You might even see talents or propensities in them that are hidden to them, and you'll be able to tease these qualities out and nurture them into natural growth. This won't be in any rational or motivational way; instead, it will occur at a subtle level that might be more intuitive than overt.
You'll have a highly creative bond as well; your dreams and imagination will serve as inspiration to your friend and could even help them to further define their own future path. Somehow, your souls will have a kinship that's both comfortable and essential to your friend's growth as a human being. The warmth between you will actually promote a feeling of familiarity early on -- as if you've known each other a lot longer than you really have.