LONDON (Reuters) — Twenty-three years after John Lennon was gunned down outside their New York apartment, Yoko Ono is convinced: “We are still working together.”

“I feel we were like two soldiers in a battlefield, marching with the beat of ‘Give Peace A Chance’. And we are still doing it,” Lennon’s widow told Reuters on a trip to London for the launch of a new “Lennon Legend” DVD.

“When I was doing the DVD, I felt as if he was there.”

The pain of Lennon’s death is still etched on her face, but Ono has come to terms with the vituperation of fans who blamed her for the breakup of the Beatles. However, her relationship with former Beatle Paul McCartney is clearly not on an even keel after all of these years.

“Sometimes we bury the hatchet and sometimes we dig it up again. He always has something to bring up. It’s alright. That is his style and that’s him,” she said.

They last fell out over McCartney’s move to have his name put before Lennon’s on some song credits.

The new DVD, given its press launch in London Tuesday, includes 20 Lennon tracks, unseen footage and even some home movies that brought the memories flooding back.

“It was an extremely emotional experience because I had to relive my life with John,” she said.

After years of being reviled by Beatle fans and mocked by art critics, Ono is the first to admit she has come out of her protective shell. “I’m starting over,” she said.

That is no idle boast. At the age of 70, she topped the U.S dance music charts with a remix of her song “Walking on Thin Ice.”

She also won acclaim in Paris for her performance-art show “Cut Piece,” when she sat on stage in silence as each audience member climbed up on stage and cut off a piece of her clothing.

True to form, she dedicated the performance to world peace and now argues that Lennon’s mantra, forever encapsulated in his classic song “Imagine,” is just as relevant today.

“His message of love and peace is very, very important, especially now. It is really taking off without me pushing too much. And I think it is really important that his words and music are communicated, especially to the younger generation.”

Their 28-year-old son Sean was reduced to tears by some of the footage in the DVD, and Yoko said: “He is very brave about that. It is hard for him, just as it is probably hard for all the other children in the Beatle family.

“He is doing his best … let’s hope he is going to come out of this incredible pressure that is on him.”

Ono feels Lennon is still watching over her, and she still very much carries a torch for his ideals.

Asked what she would say to him first if she saw him again, she instantly replied, “I hope I did the right thing by you.”