Read this excerpt from The Way to Rainy Mountain:

The sun follows a longer course in the day, and the sky is immense beyond all comparison. The great billowing clouds that sail upon it are shadows that move upon the grain like water, dividing light.

What effect does the word billowing have on the tone of this excerpt?

It supports a sense of confinement.

It helps to convey a sense of expansiveness.

The word suggests a sense of disruption.
The word creates a sense of divinity.