You should be so grateful to me,
Yet I am not that well-known.
But so strong am I really,
I am comparable, even to bone.
But despite my power,
I can be as graceful as a flower.
So many forms I do take,
Look at all the things I can make!
Find me at your fingertips,
Maybe just above your head.
Even at the feet of giants,
Or with the smallest ones instead.
There's so much I do for you,
Can you answer this riddle true?