Hannah Summers mother lost her battle with cancer and the 18-year-old was left with a letter to cherish for the rest of her life.
In her final message, Hannah's mum said: 'Please don't be mad, bad things happen in life and we have to learn to deal with it no matter how much it hurts.
'I want you to be happy and use the gifts God has given you.
'You will be a wonderful nurse just as you are a wonderful person.
'Study hard in school, don't worry about a job.'
The emotional letter also advised Hannah to 'be patient with dad', 'talk to [her friends] often', and 'use your common sense.'
It closed with the emotional assurance that she will always be watching over her family.
The note closes: 'Remember that I am still with you and still just as proud of you as I have always been...
'And most of all remember that I Love You more than you will ever know!'
In just a matter of days, Hannah's tweet of her mothers letter has gained a reaction from over 316,000 people.
Twitter users have admitted that the letter has brought them to tears.
'My heart is SHATTERED. I’m so incredibly sorry for ur loss,' wrote one person.
'Your tweet and letter have opened my eyes and inspired me. Both in my prayers.'