"Today we sisters experienced a tragedy. We lost our beautiful mother to the disease of mental illness. We are shattered," they wrote. "We are navigating profound grief and know that as we loved her, she was loved by her public. We are in unknown territory."
The late singer had been very candid about her struggles, releasing her memoir River of Time: My Descent into Depression and How I Emerged with Hope in 2016.
Judd described the work as "the account of hitting rock bottom and rising again to be thankful for taking my next breath, for the gift of clear thought, for wrestling from a nightmare a way to find joy in each day."
In the forward to her tome, the Grammy winner thanked her family and friends for always offering her a shoulder to lean on. "Even in the darkest days," the country star wrote, "I was never blinded to the compassion from my beloveds who continually reached down with loving hands and lifted me out of my harrowing nightmare of despair."
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Judd has revealed that she had dealt with suicidal thoughts over the years, and when she sought out help, "They tried me on every single thing they had in their arsenal."
She's tried to explain how mental illness took a toll on her, but noted that "nobody can understand it unless you've been there. Think of your very worst day of your whole life – someone passed away, you lost your job, you found out you were being betrayed, that your child had a rare disease – you can take all of those at once and put them together and that's what depression feels like."
One day after her passing, her daughters helped induct her into the Country Hall of Fame, which had been scheduled months prior.
"I didn’t prepare anything tonight because I knew mom would probably talk the most. I’m gonna make this fast, because my heart’s broken, and I feel so blessed," Wynonna told the audience. "It’s a very strange dynamic, to be this broken and this blessed. Though my heart’s broken, I will continue to sing, because that’s what we do."