My heart leaps up when I behold
A rainbow in the sky:
So was it when my life began,
So is it now I am a man,
So be it when I shall grow old
Or let me die!
The Child is father of the Man:
And I could wish my days to be
Bound each to each by natural piety.
Apart from the music of the lines in iambic pentameter ,I love the poem for the child-like simplicity of thought and its lyrical beauty.The image I liked when I had first read the poem in school was “natural piety” .I still dig the image. The poet is looking at Nature as a worshiper. For him Nature herself is God. Hence the word “piety”. The poet desires that his days are bound ‘each to each” by love for nature.