http://www.poetseers.org/poem_of_the_day_archive/twoth/do_not_stand_at_my_grave_and_weep/

this poem has been attributed to several authors/poets.

I Did Not Die

Do not stand at my grave and forever weep.
I am not there; I do not sleep.
I am a thousand winds that blow.
I am the diamond glints on snow.
I am the sunlight on ripened grain.
I am the gentle autumn's rain.
When you awaken in the morning's hush
I am the swift uplifting rush
Of quiet birds in circled flight.
I am the soft stars that shine at night.
Do not stand at my grave and forever cry.
I am not there. I did not die.