This is a plant, and that is the star, this is trees, and that is beach, so many things are named, are same, but have multiple meaning, have different meaning for every person. Trees are just trees for other, for botanical student, trees are super crazy, complicated, they should know how many stomata types. Trees are beautiful, green, red, pink, orange, just enjoying so many trees a long the road make your eyes happy. Inside of trees there are complex photosynthesis systems, trying to learn about it once in a while, and your brain will happy. Bring this concept to all the things around you, especially something you like. Learn and enjoy, then your soul will happy, will understand what life mean.