Why did I create the idea of a “whisper horse”, a special horse  who helps my characters deal with their problems?

In this article about a therapeutic riding program, Octavia Brown, the director puts it very well:

“A horse never judges and it never thinks you’re different.”

Isn’t that the kind of confidant we all would like to have?

via Equine therapy: N.J. program has helped the disabled ride horses for 10 years | NJ.com.