So, guess what I'm getting my wife for Valentine's Day?
Something I believe is the greatest gift any man can give his loved one: The Key.
The Key is a heart-shaped container made of sand-casted iron. The inside is hollow and just large enough to fit a personal message or small item.
I just love this concept because it brings back all the mystery, passion — and most importantly — the mysticism that any relationship should have. And according ancient Swedish tradition, couples who receive The Key will remain together forever.
It's up to you and your significant other to decide what you'd like to have placed inside The Key. Most couples choose to write heartfelt notes, which they send to the manufacturer without revealing to each other what they wrote. The Key is then sealed, with the gifts inside, by a lid of iron or brass.
The Key can never be opened, so it will always be a mystery to each partner exactly what the other placed inside.
This is what I like so much about the gift. You and your partner are committed to keep a secret about your love.
Sure, a ring or some other piece of jewelry is a much more conventional gift for Valentine's Day. But, to be honest, I never really understood where the concept of buying a ring came from.
Yes, I'm aware of the history behind it, and yes, for many of us having a ring on our fingers represents our deepest commitment to a relationship, but I think that this secret key is much deeper than that.
After all, when you've lived with someone for years — when you're there for the mundane and the thrilling, the happy and the sad, the angry and the quiet moments in each other's lives — it can be hard to keep things hidden from each other.
That leads to a complaint that we all hear fairly often from couples: There's no excitement here anymore. The "butterflies in the stomach" feeling that we enjoyed during early courtship is gone.
Some couples go to extreme lengths to get it back. They lie or pick fights or even, sometimes, have affairs. All of these actions are regretful and messy and often lead to the dissolution of what was once a good relationship.
However, I see The Key as one simple way of reviving that "butterfly" feeling. You will always wonder what your loved one chose to put inside, but you're never going to be able to open it without destroying the mysticism and wonder that it offers.
You can always take a ring off, but you can never open The Key.
Click here to find more information on The Key.
Dr. Manny Alvarez serves as Fox News Channel's senior managing health editor. He also serves as chairman of the department of obstetrics/gynecology and reproductive science at Hackensack University Medical Center in New Jersey. For more information on Dr. Manny's work, visit AskDrManny.com.