There is a poem that begins like this: If my mother is a bird, what is behind?

If I were a bird,

Motherly love is like the blue sky,

Let me fly freely.

If I were a small fish,

Motherly love is like the sea,

Let me swim to my heart's content

If I were a lamb,

Motherly love is like a prairie,

Let me eat enough there.

This is all I have.