What is the mood in The Lake Isle of Innisfree?

The mood in "The Lake Isle of Innisfree" is one of longing and desire for a simpler life in nature. The poem expresses the speaker's yearning to escape from the busyness and artificiality of city life and return to the peace and tranquility of the countryside. The mood is contemplative and reflective, with a sense of nostalgia and wistfulness for a life that is both simpler and more fulfilling.