What does "he said that among men there was no such communion as among horses and the notion that men can be understood at all was probably an illusion" mean:

This quote is from Cormac McCarthy's novel "All the Pretty Horses", written in 1992. It tells a story about a 16-years-old John Grady Cole who grew up on a ranch in Texas.

This quote portrays boy's love and passion for horses, but also his loneliness and feeling of abandonment. He made a bond with horses like no other. Horses defined him as a person and he wishes humans could be more like persons. In the previously mentioned citation, he emphasizes the understandment and coherence between the horses, as opposed to the conflicts and misunderstanding that is dominant between people. When he is in the state of dealing with a loss, he finds comfort in horses which he cannot find in people.

this question does't support enough resioning to answer.

dude you should crop your image so only the question shows. but   can you explain it better