ray of light vs shaft of light

ray of light and shaft of light both are nouns.

Word	Noun	Adjective	Verb	Adverb
ray of light	Yes	No	No	No
shaft of light	Yes	No	No	No

As nouns, ray of light and shaft of light are synonyms defined as:

Other synonyms of ray of light include beam, beam of light, irradiation, light beam, ray, shaft.

ray of light (noun)	shaft of light (noun)
a column of light (as from a beacon)	a column of light (as from a beacon)