How do i write a song about someone who died of cancer?!

How do i write a song about someone who died of cancer?

My moms best friend since 4th grade just did frome cancer and i want to write a song about it but i dont know how....

here is some ideas for a chorus:

You may be gone for now
You may be gone for sometime
But you,
You will never be gone from my life

or...

You may be gone
You may be alone
But somehow, one day
You'll come back home
We miss you
We loved you
But we'll never ever forget you
We'll remember you
But somehow, someday you'll be home
To the ones that you love and know
And we'll be there for you
And we'll wait for you
Someday
But you'll never fade away




I know kinda girly but I'm a girl! lol