Spanish to English Art/Literary Art, Arts & Crafts, Painting

In a text introducing an exhibition of Japanese textile art.

muchas de sus creaciones suelen representarse con un espacio vacío en el interior y sus figuras parecen ser de una guarida, de *una muda* o incluso una cámara de refugio, y en este espacio vacío, es decir en “Ma”, se presencia la existencia de una vida.


I understand several uses of "muda" in Spanish, but none seem to fit here. The Spanish text may also be a translation from the original Japanese, where the word "muda" has its own range of meanings. I know "muda" is a common term imported from Japanese and used in English (and I've seen it on factory walls in Spain, albethey non-Spanish multinationals), and usually related to industrial production philosophy.

Nothing seems to fit with "guarida" and "cámara de refugio"