The mother of conjoined twins undergoing separation surgery revealed her pain and anguish in a poem about her "little fighters".
Angie Benhaffaf said they need "just one more miracle" for her baby boys Hassan and Hussein to successfully recover from their "final battle".
The brothers, from east Cork in Ireland, were born in December at University College London Hospital.
They are expected to undergo surgery for around 20 hours at Great Ormond Street Hospital in London.
In a poem, Mrs Benhaffaf said she and her husband Azzedine felt cursed and cried so much when they were originally told during the pregnancy the boys may share a heart.
But their cries turned to tears of joy when "my little fighters were born" on December 2, she wrote.
"'The little fighters' is the name ye share/ You have earned it well, as you fought to be here/ Your final battle is getting near/ We are all behind you, so have no fear."
The Benhaffafs have relocated their entire family - including girls Malika, four, and Iman, two - to London for the operation and recovery.
Mrs Benhaffaf said she was praying to God her boys would feel no pain.
"No matter how this will all end/ I am forever grateful for the time we did spend," she wrote. "Always remember, you are not alone/ Please God someday, we'll all return home/ I feel I must be one of the luckiest mums/ To have not one, but two precious sons."
