Miss Morstan and I stood together, and her hand was in mine. A wondrous subtle thing is love, for here were we two who had never seen each other before that day, between whom no word or even look of affection had ever passed, and yet now in an hour of trouble our hands instinctively sought for each other. I have marvelled at it since, but at the time it seemed the most natural thing that I should go out to her so, and, as she has often told me, there was in her also the instinct to turn to me for comfort and protection. So we stood hand in hand, like two children, and there was peace in our hearts for all the dark things that surrounded us.
Arthur Conan Doyle
( A speech from Dr. John Watson)
I always loved this description of love. This moment was pretty awesome. Sadly I do not remember the title of the Sherlock story it is cut from.
(the quote is from The Sign of Four)