@Horse_ebooks is a Twitter bot run by some Russian dude trying to sell you terrible ebooks about horses. To avoid being detected as a scam, he has devised the brilliant idea to post snippets from said ebooks randomly, resulting in these amazing tweets. They're quite poetic, and a lot more interesting than horses.
We all know a horse can't be happy all the time, but Horse_ebooks has really been on edge lately. It's probably best to not go near him until he calms down and maybe re-evaluates his life.