Christina Rossetti"s Who Has Seen The Wind

Who has seen the wind?
Neither I nor you:
But when the leaves hang trembling,
The wind is passing through.

Who has seen the wind?
Neither you nor I:
But when the trees bow down their heads,
The wind is passing by.

~Christina Rossetti (1830 - 1894) British Poet
Caroline Kennedy included Who Has Seen the Wind
in her 2005 book, A Family of Poems/ My Favorite Poetry For Children. Hyperion.