If I could be the Sunrise
I could smile, when you rise.
If I could be the rainbow,
With my all colours I could say you 'Hello! '
If I could be the waves of the ocean,
I could feel you and your deep emotion.

But I am not the sunrise, not the rainbow
Not the waves of the blue ocean,
It is I, who understands your tears and joy
I am your that innocent friend.

Ruma Chaudhuri

http://www.poemhunter.com/poem/friend-248/