Cautious Quicksilver

I dreamt of a horse. One side silver, one side black. She shone, stood out, had a sleek back. She was wild, but not fast and took off before I had my stirrup tight. We were told to race on ice. We were ahead at first and then she fell behind. A woman gave her a shot of adrenalin to the flank. She sped up for a bit and then lost steam. We tip-toed around the icy edge of a cliff while the others galloped far ahead. The horse who looked like quicksilver was more cautious than you’d think.