Still in the act of being filled, a bubble of light seems to come out of the ceiling. It looks like a thin material that becomes heavier with its contents and that could burst at any moment, if it weren't supported by 4 spacers placed at the four corners of the base.

https://vakkerlight.com/products/bolla-ceiling-light 

Dimensions: 58 x 57.2 x 20.1 (cm)