I've dreamed of a lot of different spirit animals and met many in the astral realm over the years. They have taught me lessons then moved on, disappearing from my life as easily as they came into it. For me though my true guide and companion became a horse but it took ten years for me to find my girl. Ten years of meditations and practice of witchcraft and wicca to actually find THE ONE.
I've always loved horses, although I've never owned one myself. I've only ridden one twice. My day can be instantly brightened by seeing one in a field. There is something about them that draws me and I can't really explain what that something is. Once you find your spirit animal you will know, until then accept those that come to you and learn the lessons they have to teach.