In the poem "Lake Isle of Innisfree," the poet wishes to visit Innisfree since he is weary of his city life. As the poet says, "peace comes down gradually," which suggests that the tranquil stillness of the lake will overpower him as he settles into life alone in Innisfree. However, it is also possible that the poet means that peace comes down gradually because there is nothing sudden about it. Innisfree is a village on an island in a lake. Therefore, it makes sense that peace would come gradually because there is no violent action involved. There are two lines in the poem that might help us understand why peace comes slowly: "But for the sound of boats sailing out to deeper waters / And for the call of seagulls flying home across the sea" (my translation). In these lines, the poet describes how peaceful it is in Innisfree until both the fishermen and the birds go about their daily lives. Even though there are people living in Innisfree and they have needs, those needs are taken care of by the community so there is no violence against anyone. So, perhaps peace comes slowly because it takes everything around it in Innisfree being quiet before it finally reaches its peak.