Higher is a comparative adjective for a word "HIGH."
High: 1. Of great vertical extent.
2. Great, or greater than normal, in quantity, size, or intensity.
3. Great in rank, status, or importance.
1. Prabh loves to climb hills, the higher the better.
2. My best guess is that you two are soul-mates, destined to be together, and you have a higher purpose.