One has to read Thoreau carefully. He can surprise, such as when he writes, "Any prospect of awakening or coming to life to a dead man makes indifferent all times and places. The place where that may occur is always the same, and indescribably pleasant to all our senses."
A few paragraphs later he writes, "With thinking we may be beside ourselves in a sane sense."
When I paint and draw, I am always beside myself. My next group of pictures will all be pastels.