Maybe it's like Mac says. Ever man winds up with the horse that suits him.

They watched storms out there so distant they could not be heard, the silent lightning flaring sheetwise and the thin black spine of the mountain chain fluttering and sucked away again in the dark. They saw wild horses racing on the plain, pounding their shadows down the night and- leaving in the moonlight a vaporous dust like the palest stain of their passing.

What he loved in horses was what he loved in men, the blood and the heat of the blood that ran them. All his reverence and all his fondness and all the leanings of his life were for the ardenhearted and they would always be so and never be otherwise. (All the Pretty Horses)

He spoke of his campaigns in the deserts of Mexico and he told them of horses killed under him and he said that the souls of horses mirror the souls of men more closely than men suppose and that horses also love war. Men say they only learn this but he said that no creature can learn that which his heart has no shape to holo