This book is divided into two sections, one that focuses on the interior world, life in a house or memories of life in various places, and one that focuses on the exterior world, particularly that of the garden. Both worlds blend. They are quite separate. The garden informs the narrator's interior life, and he also takes his interior life to the garden.
Some of the poems reflect on mythological characters, who may be as vital and present as living characters. The plants themselves are like living characters, too. There is no strong split between the natural world and the human world. Perhaps we endanger ourselves when we insist on such a split. Animals, plants, writers (dead and alive), family, and where we live comingle.