Unlocking Sherlock (слэш)

Perhaps Soul Mate actually refers to the person who is the key to your lock. All of your locks. They are your house key, car key, safe deposit box key, all at once. Maybe that's why, until you meet them, you are only part of yourself. You can't unlock all of your locks. You can't turn off the ignition, take a step back, and enjoy the silence until, finally, you meet that person holds, or is, your Key.