Before she died, 27-year-old Holly Butcher wrote a letter we all need to read.

In the early hours of Thursday morning, Holly Butcher quietly passed away surrounded by her loved ones.

The 27-year-old from Grafton in NSW had Ewing’s sarcoma, a rare form of cancer which mostly affects young people.

In the weeks leading up to her death, Holly began to face her own mortality. She grieved for all the milestones she’d never get to experience, the kids she’d never get to have, and the future she’d never get to build with the love of her life.

She also spent hours reflecting on her life so far and thinking about what really matters in the grand scheme of things.

Holly then penned an open letter to all of us, which her family shared on her Facebook page after she died.

If you read one thing this week – make sure it’s this.

“It’s a strange thing to realise and accept your mortality at 26 years young. It’s just one of those things you ignore. The days tick by and you just expect they will keep on coming, until the unexpected happens,” Holly began her letter.

"I always imagined myself growing old, wrinkled and grey - most likely caused by the beautiful family (lots of kiddies) I planned on building with the love of my life. I want that so bad it hurts."

Holly explained that's the thing about life, it's "fragile, precious and unpredictable". She said each day was a gift and not a given right.

"I’m 27 now. I don’t want to go. I love my life. I am happy... I owe that to my loved ones. But the control is out of my hands," she wrote.

Holly penned the letter not so we would fear death, but so we could start an honest conversation about it and begin to focus on the important things.

"I just want people to stop worrying so much about the small, meaningless stresses in life and try to remember that we all have the same fate after it all, so do what you can to make your time feel worthy and great, minus the bullsh*t," she explained.

The 27-year-old wants us to remember people who are facing real problems whenever we encounter a minor inconvenience in our lives.

"You might have got caught in bad traffic today, or had a bad sleep because your beautiful babies kept you awake, or your hairdresser cut your hair too short. Your new fake nails might have got a chip, your boobs are too small, or you have cellulite on your a**e and your belly is wobbling.

"Let all that sh*t go... I swear you will not be thinking of those things when it is your turn to go. It is all SO insignificant when you look at life as a whole. I’m watching my body waste away right before my eyes with nothing I can do about it and all I wish for now is that I could have just one more birthday or Christmas with my family, or just one more day with my partner and dog. Just one more."

LISTEN: Emma Betts was diagnosed with cancer at 22, and when she was 25 she was planning her own funeral. Post continues after audio...

Instead of focusing on the negative, Holly urges us to: "Get out there and take a freaking big breath of that fresh Aussie air deep in your lungs, look at how blue the sky is and how green the trees are, it is so beautiful. Think how lucky you are to be able to do just that - breathe."

These are the things Holly wants us to remember so we can fully live for the rest of our days:

"Get up early sometimes and listen to the birds while you watch the beautiful colours the sun makes as it rises.

Listen to music... really listen. Music is therapy. Old is best.

Cuddle your dog. Far out, I will miss that.

Talk to your friends. Put down your phone. Are they doing okay?

Travel if it’s your desire, don’t if it’s not.

Work to live, don’t live to work.

Seriously, do what makes your heart feel happy.

Eat the cake. Zero guilt.

Say no to things you really don’t want to do.

Don’t feel pressured to do what other people might think is a fulfilling life... you might want a mediocre life and that is so okay.

Tell your loved ones you love them every time you get the chance and love them with everything you have.

Also, remember if something is making you miserable, you do have the power to change it - in work or love or whatever it may be. Have the guts to change. You don’t know how much time you’ve got on this earth so don’t waste it being miserable. I know that is said all the time but it couldn’t be more true."

Holly finished off her letter by giving us one easy, practical thing we can all probably do, that will make a huge difference to the lives of people just like her.

"Oh and one last thing, if you can, do a good deed for humanity (and myself) and start regularly donating blood," she explained.

"Blood donation (more bags than I could keep up with counting) helped keep me alive for an extra year - a year I will be forever grateful that I got to spend it here on Earth with my family, friends and dog. A year I had some of the greatest times of my life."

To find out how you can donate blood and save three lives — visit the Australian Red Cross Blood Service at www.donateblood.com.au for more information.

LISTEN: Mia Freedman speaks to the late Emma Betts, about coming to terms with death and planning her own funeral at 25.