In this world Animal and Human beings are not machines. We all have feelings. You can understand the plant’s feelings too sometimes only when you look into insight or you have to keep the patience to understand it more deeply. Once we connect with them in deep we get the experience of those feelings. So it is a good thing when we are kind to one another with the greatest Affectionate which is the highest level of practicing the true Dharma/Religion that I can call. Only humans can make the entire Nature, the Universe, and all kinds a Smile and a Beauty.