This short little story was written about a short little dog with a very big heart....literally. Moe has a heart defect called subaortic stenosis. It is severe enough that it cannot be fixed with surgery. Moe's heart has to work much harder to do the same job as other pets or people, so his heart becomes enlarged, leading to a much shorter life span. Moe learns life lessons that are important for all of us - loving unconditionally and making the most of each day. None of us know how many days we have and neither does Moe. He simply lives his best every day.