She also told The Hollywood Reporter, “When mom and dad passed, I went to [my sister] and said, ‘Look, this idea came to me. I can see that it’s about me working with my grief, and I was thinking, do you want to work on it together?’ … That’s what grief does. Grief spirals us off in different directions, and you can see that there’s a lot of mom and dad in [Lilly’s] Work in Progress. She’s doing something similar, but not the same. I wanted to go back and feel this thing again, and she wanted to go off and do this other thing.”

Source: https://www.distractify.com/p/will-there-be-a-matrix-5