A pasture pony
may perform the purpose of babysitting a more anxious friend. The barrel horse dancing energetically while waiting for its turn to compete is equal under the definition as the trail horse
carrying a rider through the tall grass under a canopy of trees while following a path in a National Forest.
The quick turn back of a cow in the largest coliseum for big money is equivalent to the 30-year-old pony enduring the squeals of laughter from a small child aboard its weathered frame as it languishes at the end of a lead line while being incessantly encouraged by a parent determined to trot through the pattern at a local riding club playday.
Horses are Therapeutic
Simply being a companion and a friend is very purposeful.