The eye of a horse is a wonder to behold, the depth and beauty being beyond compare. 
The expressions vary from compassion to comedy, indifference or interest….often curiosity. But the one I enjoy the most is the devilish twinkly humor that is so often there. I think they’re laughing at us most of the time, and with good reason I’m sure. Whatever the expression is, the eye of a horse is a window to a pure and intelligent soul.
Gena LaCoste
Paintings reflecting the colour and beauty of today's living west
I have to agree with you about the horses’ eyes being the windows into their souls. I wish I could hear their thoughts.