What You Don't Know

The lyrics describe someone who has kept deep feelings secret and is finally preparing to speak. The speaker admires the other person, including their flaws, but feels anxious and vulnerable around them. The mood moves from private longing and hesitation toward a decision to take a risk and confess.

Several images express feelings that are difficult to say directly. Calling someone’s scars beautiful suggests that their painful experiences are part of what makes them lovable. Saying their imperfections “make me whole” presents love as a sense of emotional completeness, not as literal repair. The speaker has “kissed” the person in the shadows of the heart: this suggests an imagined, private romance rather than a real kiss. The image of the sun and moon colliding is an impossible event, perhaps pointing to a dramatic turning point when fear gives way to action.

The claim of having loved the person “long before we were alive” may be romantic exaggeration, expressing a love that feels timeless or destined. It need not be read literally. The song leaves open whether the other person might return these feelings; the repeated question of how they could know emphasizes that the speaker has concealed them. The ending signals a willingness to try, but not certainty about what will happen.