Prince Harry has just opened up about the death of his mother Princess Diana in an emotional foreword for the book “Hospital by the Hill,” which was written by Chris Connaughton for children and young people whose loved ones have died from COVID-19.

Harry was only 12 years-old when Diana was killed in a car crash in Paris, France in 1997, and he wrote that he “didn’t want to believe” or accept that his mother had died, and how it “left a huge hole” inside of him.

“If you are reading this book, it’s because you’ve lost your parent or a loved one, and while I wish I was able to hug you right now, I hope this story is able to provide you comfort in knowing that you’re not alone,” Harry wrote, according to Entertainment Tonight. “When I was a young boy I lost my mum. At the time I didn’t want to believe it or accept it, and it left a huge hole inside of me.”

“I know how you feel, and I want to assure you that over time that hole will be filled with so much love and support,” he added. “We all cope with loss in a different way, but when a parent goes to heaven, I was told their spirit, their love and the memories of them do not. They are always with you and you can hold onto them forever. I find this to be true.”

“Now, I never met them, but I know this person was special to you, and they were someone incredibly kind, caring and loving because of where they chose to work. Helping others is one of the most important jobs anyone can ever do,” Harry added. “You may feel alone, you may feel sad, you may feel angry, you may feel bad. This feeling will pass.”

Harry concluded his passage with a promise to young people, saying, “And I will make a promise to you – you will feel better and stronger once you are ready to talk about how it makes you feel. I hope this book helps remind you of just how special your parent or loved one was. And how special you are too.”