You try to push the gale, and it topples you over. You get swept away by the wind, get thrashed around by the storm, maybe break a few bones, and at times, even your heart.
But you try pushing a tree, and it stands resolute. Steady, obstinate. Doesn't budge an inch, and instead, you grow a few muscles. You grow stronger. You don't break your bones, but you scathe your hands, get a few wounds. And you never, ever break your heart.

Now, why would anybody in their right mind push the gale? Or the tree, for that matter? Rationality deems it silly.
But then again, Love IS silly, love IS irrational.
Love, is trying. 
Love just is. :)