That's such a loaded question...after losing both my parents, my mare has been there through it almost all of it. She was Mom's gift to me after I endured braces for three years (and spent four years working for my riding lessons), and I know now that it was Mom's way of making sure I could retain some sanity through whatever life may bring. My girl is gracious and kind and forgiving, but she holds me accountable and gives me hell sometimes. She's soothing when I'm upset and dumps me when I'm being cocky. She has her faults and I have mine, but we know eachothers' and our partnership makes us both into better beings. She's a great teacher to my young mare, and she's always up to giving pony rides if I need her to (although she refuses to go faster than a walk, and she insists on following me, regardless of whatever her "rider" is telling her to do). She gets cranky when I'm not around, and she makes me believe in myself when I'm convinced I can't do anything right. What does my horse mean to me? She's my baby, my friend, my partner, my serenity, my disicpline, my coach, and my inspiration. What else could get you out of bed at 4:30am to go out into -40° wind chills (Minnesota...) before work?