who am I?

Van Gogh Iam not to guage creator by capturing colours of nature on canvas.
Shakespeare I am not to measure human feelings, thoughts and emotions without any fear.
Buddha I am not to bestow mankind with eight fold path to come out of sorrow without a bother.
But just a mere speck of a speck in this vast universe trying to fanthom my position in the scheme of things that was in place before me and will be there after me .