The Lake Isle of Innisfree is the first poem I remember hearing as a child. There are a lot of poems out there that are sad, that are in mourning, this poem is not one of them. There is peace in this poem, longing is there too, but it is intertwined with the peace. This is the first poem I memorized as a child, that was not by Shel Silverstine. Even after all these years, this remains one of my favorite poems.

The Lake Isle Of Innisfree
W.B. Yeats

I will arise and go now, and go to Innisfree,
And a small cabin build there, of clay and wattles made:
Nine bean-rows will I have there, a hive for the honey-bee;
And live alone in the bee-loud glade.

And I shall have some peace there, for peace comes dropping slow,
Dropping from the veils of the morning to where the cricket sings;
There midnight’s all a glimmer, and noon a purple glow,
And evening full of the linnet’s wings.

I will arise and go now, for always night and day
I hear lake water lapping with low sounds by the shore;
While I stand on the roadway, or on the pavements grey,
I hear it in the deep heart’s core.