Love is the great intangible.

"Love is the great intangible. In our nightmares, we can create beasts out of pure emotion. Hate stalks the streets with dripping fangs, fear flies down narrow alleyways on leather wings, and jealousy spins sticky webs across the sky. In daydreams, we can maneuver with poise, foiling an opponent, scoring high on fields of glory while crowds cheer, cutting fast to the heart of an adventure. But what dream state is love? Frantic and serene, vigilant and calm, wrung-out and fortified, explosive and sedate – love commands a vast army of moods. Hoping for victory, limping from the latest skirmish, lovers enter the arena once again. Sitting still, we are as daring as gladiators. … Love is the white light of emotion. It includes many feelings which, out of laziness and confusion, we crowd into one simple word. Art is the prism that sets them free, then follows the gyrations of one or a few. When art separates this thick tangle of feelings, love bares its bones. But it cannot be measured or mapped. Everyone admits that love is wonderful and necessary, yet no one can agree on what it is." - from A Natural History Of Love by Diane Ackerman