My condolences also. Here's a favourite poem that might help:
Do not Stand at my Grave and Weep
(by Mary Elizabeth Frye)
Do not stand at my grave and weep,
I am not there, I do not sleep.
I am a thousand winds that blow,
I am the softly falling snow.
I am the gentle showers of rain,
I am the fields of ripening grain.
I am in the morning hush,
I am in the graceful rush
Of beautiful birds in circling flight.
I am the starshine of the night.
I am in the flowers that bloom,
I am in a quiet room.
I am in the birds that sing,
I am in each lovely thing.
Do not stand at my grave and cry,
I am not there -- I do not die.
Source:
http://eir.library.utoronto.ca/rpo/d.../poem2670.html