Love, Love, Love! Happy Valentine's Day!

Happy Day of Love, Dia del Amor, Valentine's Day!

How does one define love? I was curious.
I searched for the actual definition, wondering what words could possibly be used to encapsulate such a strong and powerful and uncontrollable emotion. Here is some of what I found, courtesy of Heritage Dictionary:

love (lŭv) n.
A deep, tender, ineffable feeling of affection and solicitude toward a person, such as that arising from kinship, recognition of attractive qualities, or a sense of underlying oneness.
A feeling of intense desire and attraction toward a person with whom one is disposed to make a pair; the emotion of sex and romance.
Sexual passion.
Sexual intercourse.
A strong predilection or enthusiasm.
The object of such an enthusiasm.
An intense emotional attachment.
A person who is the object of deep or intense affection or attraction; beloved. Often used as a term of endearment.
An expression of one's affection.
Love Mythology Eros or Cupid.

v. loved, lov·ing, loves
To have a deep, tender, ineffable feeling of affection and solicitude toward a person.
To have a feeling of intense desire and attraction toward a person.
To have an intense emotional attachment to an object.
To embrace or caress.
To have sexual intercourse with.
To like or desire enthusiastically.
To thrive on; need.
To experience deep affection or intense desire for another.

They certainly tried to define every contingency, but defining love in concrete terms feels lacking. I'm not sure love can be quantified. And maybe that's ok.
Happy Valentine's Day! May it be filled with love!