Prince William (37) recently joined Mary Berry (84) on the BBC for A Berry Royal Christmas. In the special, he also talked about his mother Princess Diana (†36), who died much too early, and about how much she influences him in his everyday life.

It was important to Princess Dina that her sons, despite their privileged lives, had an awareness of the social issues outside of the royal bubble:

"She realized it was very important when you grow up, especially in the life that we grew up in, that you realized life happens beyond palace walls, and that you see real people struggling with real issues," said the Duke of Cambdrige.

Prince William talks about Princess Diana

Prince William has deeply internalized these words. He has been involved in a number of charitable cause for many years and is always travelling the world for a good cause. His wife Duchess Catherine (37) and his brother Prince Harry (35) are also committed to many charity organizations.

While talking to Mary Berry on the BBC special, he unearthed some amazing childhood memories. William and Mary visited the organization The Passage, which cares for homeless people and helps them get back on their feet. The first time he was there was in 1993 with his mother Princess Diana.

The renewed visit to The Passage stirred many emotions in Prince William. He stressed: "It was one of the first places I came to actually. I must have been between eight and ten, something like that, and it had a profound impact on me."

Prince William talks to Charlotte and George about social issues

Again and again, William reveals how much he learned from Princes Diana. Especially when dealing with his own children, he lets himself be guided by memories of his caring mother. He also wants to pass on his social consciousness to his children.

The prince explained that he regularly talks to Prince George (6) and Princess Charlotte (4) about homelessness on their way to school.

"On the school run already, bear in mind they're six and four, whenever we see anyone who is sleeping rough on the streets, I talk about it, and I point it out and I explain why and they're all very interested. They're like: 'Why can't they go home?'"