Jackie Mu, is the zendog at Little Flower Zendo, Perumalmalai. Joshu’s dog and Mu ( Whether Dog has Buddha nature) is the most important koan in Zen. Jackie Mu , is very compassionate doggie. And very wise too . In this Zendo with so many rooms and people , she knows which door to knock and whom to ask for her food . Usually I return to Zendo after a 3 week gap and the joy Jackie expresses is to be seen to be believed . Dogs do have Buddha nature . Mu.