Lullaby! Lullaby!
There’s a tower strong and high
Built of oak and brick and stone,
Stands before a wood alone.
The doors are of the oak so brown
As any ale in Oxford town,
The walls are builded warm and thick
Of the old red Roman brick,
The good grey stone is over all
In arch and floor of the tower tall.
And maidens three are living there
All in the upper chamber fair,
Hung with silver, hung with pall,
And stories painted on the wall.
And softly goes the whirring loom
In my ladies’ upper room,
For they shall spin both night and day
Until the stars do pass away.
But every night at evening.
The window open wide they fling,
And one of them says a word they know
And out as three white swans they go,
And the murmuring of the woods is drowned
In the soft wings’ whirring sound,
As they go flying round, around,
Singing in swans’ voices high
A lonely, lovely lullaby.

Clive Staples Lewis

http://www.poemhunter.com/poem/lullaby-91/