I knew immediately this was Mark’s work. He’s one of my favorites and I hope some day I can afford to get an original

The artistic talent here is remarkable but the title ‘Symbiosis’ (as defined as a mutually beneficial relationship between different species) does not accurately describe the relationship between man and horse. Man enslaves and exploits Horse for labor. Given that Horse must be ‘broken’ to be ridden and caged to prevent him from finding his freedom we should assume that he does not desire to be so used because it does not bring him a pleasure greater than freedom.