'Introduction'

Piping down the valleys wild Piping songs of pleasant glee On a cloud I saw a child. And he laughing said to me. Pipe a song about a Lamb: So I piped with merry chear, Piper, pipe that song again-- So I piped, he wept to hear. Drop thy pipe thy happy pipe Sing thy songs of happy chear, So I sung the same again While he wept with joy to hear Piper sit thee down and write In a book that all may read-- So he vanished from my sight And I pluck'd a hollow reed. And I made a rural pen, And I stained the water clear, And I wrote my happy songs, Every child may joy to hear.  William Blake