Furious Prince Harry spat the words "you never even met her" at the British public for mourning Princess Diana.
Speaking on the Apple TV+ documentary The Me You See, he said the words: "This was my mum, you never even met her."
The Princess of Wales was killed in a car crash in 1997.
During her lifetime, Diana won over the hearts of the British nation with her genuine loving spirit and kindness she showed to everyone.
Quickly she become known as the "people's princess" and she was truly loved.
Her death sent shockwaves through the UK and everyone went into mourning, having lost the kind person British people everywhere had fallen in love with.
Only 12, Harry said he was filled with so much anger at what happened to his mother and the tragedy of her death.
The Duke of Sussex complained he couldn't understand why everyone was overcome with emotion.
Harry felt this especially as he was showing "one tenth of the emotion" at the funeral.
After all, in his opinion he felt she was his mum and strangers had never met her.
He said: "(I was) showing one tenth of the emotion that everybody else was showing: This was my mum - you never even met her.
"I was so angry with what happened to her and that there was no justice, at all. Nothing came from that."
On reflection, Harry looked back at his mother's funeral where he said he was having a total "out-of-body experience".
He said: "When my mum was taken away from me at the age of 12, I didn't want the life, sharing the grief of my mother's death with the world.
"For me, the thing I remember the most was the sound of the horses' hooves going along the Mall.
"It was like I was outside of my body and just walking along doing what was expected of me."
Harry started serious therapy years ago after a row with Meghan Markle.
It was the Duchess of Sussex who spurred him on to get professional help.
"I quickly established that if this relationship was going to work, I had to deal with my past," Harry told Oprah.
Harry featured taking part in an EMDR session which is a process therapy aimed at helping emotional distress by briefly focusing on a traumatic memory.
