what arguments does Thoreau present in "solitude" to demonstrate that he is not lonely in his isolated cabin?

Thoreau wanted to live deliberately. He wanted to suck the marrow out of life and all that....Thoreau says that he did not feel isolated in his cabin because the experience lit within him the flame of truth. Truth in the primal sense of man and nature existing as one. He finds freedom in nature's rhythms and reflects on the prison that people put themselves in living in a materialistic society. Thoreau finds this meditation in nature soothing but he is also aware of society that seems to exist on the peripheries of his oasis. The Fitchburg Railroad, for example, rushes past Walden Pond. He takes infrequent trips into town to visit with friends as well. Thoreau always returns to his cabin. He finds companionship with the animals around him and even welcomes the pests that infest his cabin as they escape the coming frosts.