Nature by Emerson

Emerson is talking about how he thinks people and the universe are basically one in the same, and that us and god are one, too.
"But if a man would be alone, let him look at the stars. The rays that come from those heavenly worlds, will separate between him and vulgar
things."
The man would truly appreciate the world, universe, and it's true meaning. If he isolated himself every once in a while, he would feel more free and happy, but most of all grateful. While washing away your worries and crazed way of life.