In a statement on his Instagram account, Astin wrote: “This morning, our beloved wife, mother, grandmother, matriarch and the exquisite artist, humanitarian, and champion for mental health, Anna PATTY DUKE Pearce, closed her eyes, quieted her pain and ascended to a beautiful place.”
Astin, 45, – star of The Goonies and The Lord of the Rings film series – has also started a CrowdRise mental health project to honor his mother, who was diagnosed with bipolar disorder in 1982.
I love you mom. OUR FAMILY STATEMENT ON THE PASSING OF PATTY DUKE This morning, our beloved wife, mother, grandmother, matriarch and the exquisite artist, humanitarian, and champion for mental health, Anna PATTY DUKE Pearce, closed her eyes, quieted her pain and ascended to a beautiful place. We celebrate the infinite love and compassion she shared through her work and throughout her life. Her work endures… The Patty Duke Mental Health Project: https://www.crowdrise.com/patty-duke-mental-health-project/fundraiser/seanastin1
A photo posted by Sean Astin (@seanastin) on Mar 29, 2016 at 11:38am PDT
Astin calls his mother a “tireless warrior” in his tribute on the CrowdRise page, detailing how she campaigned and lobbied for mental health awareness, which he now wants to continue.
Speaking to Good Day LA on Tuesday, Astin spoke about how the campaign is already helping him deal with his loss.
“I feel rock solid at this moment because I’m charged with a sense of mission for her,” the actor said. “So, it’s great to have purpose. There’s some things in her life that she’d like to continue after her, and we talked a lot after that. The moment of someone’s passing, particularly a public person, generates a pulse, so I just want to honor that.”
He continued: “At that time in the mid-80’s, when she ‘went public’ with her diagnosis and sharing her story about her mania and her depression and all that. I don’t know how many actors or celebrities had, kind of, done that. I go around and give speeches on this kind of carrying the torch for her and stuff, and I would say that the world now is infinitely more understanding and compassionate, and yeah, there’s still stigma, but it’s a different world out there. And, I think she had a nice role to play in that evolution of our society, so we’re all very proud of her for that.”
Duke sat down with PEOPLE in 1999 to open up about her battle with manic depression and reveal how she turned her life around.