Celia Rowlson-Hall’s Sisyphean Beach Balls

“I hate large beach balls,” Celia Rowlson-Hall said at the Baryshnikov Arts Center last week.

A director, choreographer and performer best known for her quirky and surreal work in film, Rowlson-Hall was rehearsing “Sissy,” an idiosyncratic hybrid of dance and theater. It draws on the Greek myth of Sisyphus, eternally condemned to push a boulder up a mountain only to have it roll back down. The boulder is represented by a giant beach ball, and in rehearsal the performers were having trouble lofting it into a net suspended above the stage. After failing a few times, they succeeded, only to have the ball bounce back out again.

This Sisyphean moment was not planned, but it might easily have been part of the choreography. “Sissy,” which runs at the Baryshnikov Center Thursday through Saturday, is the kind of production that playfully blurs the line between real life and make believe. It’s about a director-choreographer (Zoë Winters), a new mother who is making a dance piece that uses the metaphor of Sisyphus to symbolize the difficulties of balancing motherhood with her artistic life. Rowlson-Hall came up with the idea while she was pregnant and working on a feature film.

“It was a camera movement in my head,” she said during a rehearsal break. “I saw the camera coming around and revealing this woman who had been hiding behind the rock the whole time. And I was like, ‘Oh, what’s her story?’”

Much of the story that Rowlson-Hall wrote is drawn from her life, but it’s nested in layers of fiction and art making. In “Sissy,” which alternates between scenes of dialogue and dance, Winters’s character presents a work-in-progress set in a rock quarry. (Lucas Hegseth plays a quarry worker.) A dancer (Ida Saki) pushes the beach ball around, dances out childbirth, then pushes a slightly smaller beach ball (representing the moon) while holding her child — a child played by Saki’s own 1-year-old son.

The showing seems to be going fine when it’s interrupted by a paleobotanist, who announces that she has made a “once in a millennium” discovery in the parking lot: the fossilized root system of the world’s oldest forest. It seems the boulder that is the director’s show is rolling down the mountain again, and she will have to adjust to the new circumstances — a process made more farcical because the paleobotanist is played by the gifted physical comedian and actress Marisa Tomei.