In the area where I live people have their gardens "neat". That means nature has to obey their wills. Our garden in contrast, is a little miniature refuge and sanctuary for all that type of life that will be around in your garden, if you appreciate it, love it, leave it and respect it.
You should develop eyes for microcosmic dimensions: different grasses and different mosses want to become a heterogeneous layer in which tiny animalcules (insect, spiders, worms) will be able to live in a somewhat naturallly harmonic context.