What is the meaning of "in a white light" in the following sentences,
Long long ago an Emperor lived in China. His name was Ming Ti. And the Emperor had a son. His name was Ming Cho. One day Ming Cho was playing in the garden. There was a big storm. Lightning came down to the garden in a white light.
(Source: Once There Was a Dog by EDWARD W. DOLCH and MARGUERITE P. DOLCH) ?
Does it mean "Lighten came down to the garden. The garden was filled with a white light."?
or does it mean "Lighten came down to the garden. the color of the garden is a white light."?
Does "in" of "in a white light" mean "was filled with" ?