A documentary telling the story of a transgender Hawaiian teacher will premiere on PBS Monday evening.

Kumu Hina is about Hinaleimoana Wong-Kalu, who is a mahu — the Hawaiian word for “those who embody both male and female spirit,” according to a press release for the film.

Wong-Kalu was born on Oahu and educated at Kamehameha Schools and the University of Hawaii. She is known in part for her strong advocacy for kanaka maoli rights, assets and practices.

“This film introduces us to an unforgettable and courageous woman whose life is simultaneously grounded in ancient tradition and on the forefront of one the most contemporary movements in society today,” said Lois Vossen of the PBS program Independent Lens. “Gender fluidity is a concept that has been understood for thousands of years in Polynesian culture, but is only now beginning to be accepted in the West. ‘Kumu Hina’ teaches us all how to love and accept ourselves as we are.”

“Kumu Hina” is directed and produced by Dean Hamer and Joe Wilson.

The film’s airing is part of Asian American and Pacific Islander Heritage Month programming on PBS.